Cal-Royal CONWB42 Convex Wall ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.96
Cal-Royal Cal-Royal CONWB42 Solid Brass or Stainless Steel Convex Wall Stop CAL-CONWB42

Cal-Royal CONWB42 Convex Wall Stop with Rubber Bumper

(No reviews yet) Write a Review

Model: CONWB42-US26
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$4.96
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Cal-Royal CONWB42 Convex Wall Stop with Rubber Bumper

The Cal-Royal CONWB42 is a durable convex wall stop manufactured using Stainless Steel or Solid Brass, engineered to protect walls and doors from impact damage in commercial environments. Featuring a 2 1/2" base diameter and 1 3/16" overall projection, this wall-mounted stop includes a convex rubber bumper that absorbs impact and helps avoid damage to locks with projecting buttons. The unit conforms to ANSI/BHMA 156.16 L22201 for brass and L52101 for Stainless Steel, ensuring reliable performance that meets recognized industry standards for door hardware accessories.

Key Features

  • Base Diameter: 2 1/2" for secure, stable wall mounting.
  • Overall Projection: 1 3/16" provides adequate clearance and protection from door hardware contact.
  • Material Options: Manufactured using Stainless Steel or Solid Brass for long-term durability in commercial applications.
  • Convex Rubber Bumper: Included to absorb impact and prevent damage to locks with projecting buttons.
  • Easy Installation: Rubber bumper has a small hole for insertion of screwdrivers for easy installation.
  • Industry Compliance: Conforms to ANSI/BHMA 156.16 L22201 for brass and L52101 for Stainless Steel.

Certifications & Compliance

  • ANSI/BHMA 156.16 L22201 (Brass)
  • ANSI/BHMA 156.16 L52101 (Stainless Steel)

Technical Specifications

  • Product Group: Door Trim and Accessories
  • Product Subgroup: Door Stops, Holders, Silencers & Bumpers
  • Product Type: Door Stops - Wall
  • Commercial/Residential: Commercial
  • Subcategory: Door Stops, Holders, Silencers & Bumpers
  • Product Category: Door Trim and Accessories
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Cal-Royal CONWB42?

Cal-Royal wall stop products deliver professional-grade reliability with Stainless Steel or Solid Brass construction rated to ANSI/BHMA 156.16 standards. Engineered for demanding commercial applications where dependable wall and hardware protection is essential.

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Door Stops, Holders, Silencers & Bumpers
Product Type:
Door Stops - Wall
Commercial/Residential:
Commercial
Subcategory:
Door Stops, Holders, Silencers & Bumpers
Product Category:
Door Trim and Accessories
Product Substrate:
Brass
Department:
Door Hardware

Cal-Royal CONWB42-US26 – Frequently Asked Questions

1) Will the Cal-Royal CONWB42 wall stop keep my lever handle or knob button from hitting the wall?
That's what the convex bumper is for. The CONWB42 projects 1 3/16 inches off the wall, and the rubber bumper is convex rather than flat so it catches locks with projecting buttons without the button digging into the face of the stop. Measure from the finished wall to the highest point of your lock hardware when the door is fully open. If your hardware sticks out more than 1 3/16 inches, the wall will still take the hit and you want a longer wall stop instead.
2) Is the Cal-Royal CONWB42 ANSI/BHMA rated for commercial buildings?
Yes, and the rating depends on which material you order. The brass version conforms to ANSI/BHMA 156.16 L22201 and the stainless steel version to L52101. Cal-Royal lists it as a commercial product, so if your specification calls out an A156.16 auxiliary hardware item, the CONWB42 answers it under one of those two designations. Put the right one on your submittal, since the brass and stainless numbers are not interchangeable.
3) My wall stop keeps punching through the drywall behind it. Is the CONWB42 the right fix?
A stop with a 2 1/2 inch base spreads the blow better than a small rosette bumper, but it's still only as good as what it anchors into. A wall stop wants solid blocking, a stud, or masonry behind it. If you're mounting into unbacked drywall and the door gets slammed, look at the Ives WS11 or WS33, both heavy duty wall stops listed for drywall and masonry applications with a replaceable rubber bumper, so the rubber is a consumable instead of a whole new stop. If the real problem is the door swinging free, a holder like the Ives WS20 with a hinged strike stops the impact happening at all.
4) I need the door to stay open, not just stop. Will a Cal-Royal CONWB42 hold it?
No. The CONWB42 is a bumper, it absorbs the impact and stops the swing, and the door comes right back. Nothing about it latches the door open. For hold-open you need a wall holder: the Ives WS20 uses a hinged strike you engage by hand, and the Ives WS40 is the automatic version with a heavy duty bumper pad. Buyers ordering stops for a loading corridor or a move-in route usually want holders on a few of those openings and stops everywhere else.
5) The wall behind my door is not where the door hits. Can I still use a wall stop, or do I need a floor stop?
A wall stop only works when the door edge or the lock hardware actually reaches the wall at the open position. If the door swings into open floor, past a return, or over a base cabinet, the CONWB42 has nothing to bear against and you want a floor stop instead. ZenSupply carries the Delaney 3 inch rigid door stop and the Delaney 3 inch spring door stop for that condition. Spring types flex on contact; rigid types are the firmer stop.
6) What is the difference between a convex wall stop like the Cal-Royal CONWB42 and a concave wall bumper?
The bumper face is the difference, and it decides what hits it. The CONWB42 bumper is convex - it bulges outward - which is what lets it clear locks with projecting buttons without the button bottoming into the pad. The Delaney 2-1/4 inch concave wall bumper is dished the other way, so the door hardware seats into the cup rather than glancing off a dome. A concave face suits a door where a knob or lever tip lands on the bumper; a convex face suits a door where a projecting lock button lands on it. Base size differs too: the Delaney concave bumper is 2-1/4 inch, the CONWB42 base is 2 1/2 inch.
7) What is the closest heavy duty equivalent to the Cal-Royal CONWB42 convex wall stop?
The Ives WS33/WS33X is the nearest match. Both are wall-mounted door stops with a rubber bumper, and the Ives WS33/WS33X is a heavy-duty wall door stop with a replaceable rubber bumper. The practical difference is the bumper service life: the CONWB42 bumper is convex and has a small hole for a screwdriver during installation, while the WS33/WS33X bumper is replaceable, so a worn pad can be swapped without pulling the base off the wall. The Ives WS11/WS11X is a second heavy-duty option with a replaceable rubber bumper, spec'd for drywall and masonry.
8) The door needs to be held open, not just stopped. What replaces the Cal-Royal CONWB42?
The CONWB42 is a bumper only - it stops the door swing and protects the wall, but it does not hold the door open. For hold-open, use a wall holder instead: the Ives WS20/WS20X is a manual wall holder with a hinged strike for drywall and masonry applications, meaning someone drops the strike to hold the door. The Ives WS40 is an automatic wall holder with a heavy duty bumper pad, which catches the door when it swings to the wall. Both mount to the wall in the same general position a CONWB42 would occupy, so this is a straight swap of intent, not of location.
9) The wall behind the door is not solid where the stop would land. What should be used instead of a Cal-Royal CONWB42?
A wall stop only works where the door reaches a wall that can take the anchor. When the strike point misses stud or masonry, move the stop to the floor or the door itself: the Delaney 3 inch HD rigid door stop is a rigid stop, and the Delaney 3 inch spring door stop uses a spring body that flexes on contact. Both take the stop off the wall plane entirely. If the wall is sound but the mounting substrate is the question, the Ives WS11/WS11X and WS20/WS20X are both spec'd for drywall and masonry.
10) The door swings well clear of the wall and a 1 3/16 inch projection will not reach. What wall stop covers that?
Projection is the whole question when the door stops short of the wall. The CONWB42 projects 1 3/16 inch overall, which suits a door that comes close to the wall. When the gap is larger, a longer-stem wall stop is the fix: the ABH RM Series and RMS Series wall door stops are both offered with multiple length options, so the stem is selected to bridge the distance from wall to door face. Measure from the finished wall to the point on the door that would strike, then pick the length that lands the bumper on the door rather than letting the lever hit the wall.
11) What size hole does the CONWB42 wall stop cover, and how big is the footprint on the wall?
The base is 2 1/2 inches in diameter, so that's the circle of wall it sits on and the area of paint it will protect from repeat hits. If you're replacing an older stop, anything that left a mark or fastener holes wider than 2 1/2 inches across will still show around the edge.
12) Which finish of the CONWB42 do I order to match the rest of my door hardware?
Six finishes, and they cover the usual commercial matches: US3 polished brass, US4 satin brass, US10 satin bronze, US10B antique bronze oiled, US26 polished chrome, and US32D satin stainless steel. If your building is standardized on 626 satin chrome levers, US26 polished chrome is the brightest chrome option here and US32D is the closest satin metal look. Order the same finish code across every opening so the stops read as one set.
13) Brass or stainless steel for a Cal-Royal CONWB42 wall stop, and does it change the finish I can get?
Both materials are offered on the CONWB42 and they carry different ANSI/BHMA designations, L22201 for brass and L52101 for stainless. The plated brass finishes are the ones that give you polished and antique looks (US3, US4, US10, US10B, US26); US32D satin stainless steel is the material-matched choice for washdown areas, kitchens, and healthcare corridors where people expect stainless throughout.
14) How does the CONWB42 wall stop install, and does the bumper have to come off?
The bumper stays put. The rubber bumper has a small hole through it so a screwdriver passes straight through to the mounting screw, which means you drive the stop to the wall without prying the rubber out first and without leaving a tool mark on the finish. Practical difference on a punch list of forty doors.
15) Is the Cal-Royal CONWB42 suitable for a school or hospital corridor, or is it a residential-grade stop?
It's a commercial item. Cal-Royal builds it in stainless steel or solid brass and rates it to ANSI/BHMA 156.16, which is the standard institutional specifiers write to for auxiliary door hardware. Typical placements are office buildings, schools, healthcare facilities, retail, warehouses, multi-tenant residential, and government buildings. For a facility standardizing across hundreds of openings, one finish code and one part number covers every wall-mounted stop location where the projection works.
16) Is the Delaney 2-1/8 inch hole plate cover an alternative to a Cal-Royal CONWB42 wall stop?
No, and the size similarity is a trap. The Delaney 2-1/8 inch hole plate metal cover is a cover plate for an existing hole - it conceals an opening in the surface and takes no impact. The CONWB42 is a functional wall stop with a convex rubber bumper that absorbs the door's impact and protects the wall. If a previous stop was removed and left a hole, the hole plate cover addresses the hole; a new CONWB42 or another wall stop still has to be mounted to stop the door.
17) Which wall bumpers come in brass for a finish-sensitive opening, like the Cal-Royal CONWB42?
The CONWB42 is built in stainless steel or solid brass, with brass as the substrate on the finish range, and it is offered in US3 polished brass, US4 satin brass, US10 satin bronze, US10B antique bronze oiled, US26 polished chrome, and US32D satin stainless steel. On the brass side, the Emtek 2255 is a brass wall bumper with a regular rosette, which gives a decorative rosette base rather than a plain round base. Both are brass-bodied wall bumpers; the choice is base appearance and finish range against the rest of the trim on the opening.
18) For standardizing wall stops across a facility, how do the Cal-Royal CONWB42 and the Ives WS40 differ in duty level?
They are not the same class of part. The CONWB42 is a commercial-grade wall stop conforming to ANSI/BHMA 156.16, L22201 for brass and L52101 for stainless steel, in stainless steel or solid brass. The Ives WS40 is an automatic wall holder rated light duty, with a heavy duty bumper pad. For a facility standard on high-traffic openings, the heavy-duty wall stops in the set are the Ives WS11/WS11X and WS33/WS33X. Match the duty level to the traffic on the opening, then hold one part number across the doors that share it.
19) What is the difference between the ABH RM Series and RMS Series wall door stops when specifying against a Cal-Royal CONWB42?
Both ABH lines are wall door stops offered with multiple length options, so either can be specified to a measured wall-to-door distance rather than a single fixed projection like the CONWB42's 1 3/16 inch. The RM Series and RMS Series are separate series designations, so the part number written on the drawing has to carry the series letter along with the length - RM and RMS are not interchangeable on an order even at the same length.
20) Rigid or spring door stop instead of a Cal-Royal CONWB42 wall stop - what changes?
The CONWB42 mounts to the wall and takes the door on a convex rubber bumper. The Delaney 3 inch HD rigid door stop has no give in the body, so the door stops where the stop stands. The Delaney 3 inch spring door stop uses a spring body that deflects when the door contacts it, which softens the arrival and lets the stop take an off-angle hit. Both Delaney stops are 3 inch. Choose the rigid stop where the door must not travel past a fixed point, and the spring stop where some flex at contact is acceptable.
How fast can I get the Cal-Royal CONWB42-US26 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Cal-Royal CONWB42-US26 come with a warranty?
Absolutely. The Cal-Royal CONWB42-US26 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Cal-Royal CONWB42-US26?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Cal-Royal CONWB42-US26 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!