A Division 10 specialties contractor supplies and installs the finish items that show up on almost every multifamily unit and common area: bath accessories, toilet partitions, room signage, lockers and mailboxes, fire extinguisher cabinets, corner guards, and closet shelving. Under the CSI MasterFormat system, these products all sit in Division 10, the Specialties division, which is why general contractors package them together and bid them as one scope. The value of a single Division 10 sub is not the installation. It is the coordination that happens weeks before installation, when blocking, rough openings, and signage placement still cost nothing to get right.
Most Division 10 corrections trace back to one cause: the sub was engaged after the framing and drywall windows closed. A grab bar with no blocking behind it, a mailbox alcove framed two inches too shallow, a signage schedule that never reached the door hardware sub. Each of those is a wall you open after paint. This page covers the full Division 10 scope, what belongs in the package, the pre-drywall coordination that prevents rework, the ADA signage rules that catch projects at inspection, and the specific items to require from any sub you hire.
What Division 10 specialties covers
Division 10 groups the interior and site specialty products that do not belong to a larger trade division. On a multifamily project, the package usually covers seven product families:
| Product family | Typical items | Where it lands |
|---|---|---|
| Bath accessories | TP holders, towel bars, robe hooks, soap dispensers, grab bars | Every unit bath, common restrooms |
| Toilet partitions | Powder-coated steel, solid plastic, phenolic | Amenity and common restrooms |
| Signage | Room ID, directional, informational, ADA tactile | Unit doors, common areas, parking |
| Postal and storage | 4C mailboxes, package lockers, resident lockers | Mail rooms, amenity floors |
| Fire protection specialties | Fire extinguisher cabinets, Knox boxes | Corridors, exterior entries |
| Corner guards | Surface-mount and flush wall guards | Corridors, elevator lobbies, trash rooms |
| Closet systems | Ventilated wire shelving, closet rod kits | Unit closets, pantries, linen closets |
Bath accessories and grab bars carry the highest coordination risk because they mount to blocking that goes in during framing. Toilet partitions and signage carry the most inspection risk because both fall under accessibility rules with tight dimensional tolerances. Corner guards and closet shelving are lower risk but still depend on stud layout and backing to hold up over a multi-year tenancy.
What the Division 10 package should include
A clean Division 10 subcontract covers supply, delivery, and installation for every item above, plus the pre-construction submittals and field coordination that make the installation possible. When a GC splits these items across separate suppliers, or runs them through its own forces, the coordination steps fall between the cracks and reappear as corrections during closeout.
At a minimum, the package should include a unit-type accessory matrix (which accessories go in which unit plan and which meet the accessible-unit requirements), a blocking and backing plan handed to the framing sub before layout, rough opening dimensions for mailboxes and lockers, a signage message schedule tied to the door and room numbering, and Knox box and fire extinguisher cabinet locations confirmed with the local fire authority. Ask for these as deliverables in the subcontract, not as favors during construction.
The reason to hold one sub accountable for all of it is sequencing. The same person who sets grab bar heights should be reading the mounting height plan for signage and the rough opening depth for the mailbox bank. Split the scope and no one owns the seams.
Blocking and backing before drywall
The blocking conversation is the single most valuable thing a Division 10 sub does, and it has to happen before the framing crew closes the walls. Grab bars, towel bars that double as grab bars in accessible units, wall-hung accessories, corner guards, and mailbox and locker banks all depend on solid backing behind the finished surface. Standard metal stud framing with no blocking will not hold them.
The 2010 ADA Standards for Accessible Design, Section 609.8, require grab bars and their mounting to withstand 250 pounds of force applied in any direction. Drywall anchors do not meet that. Blocking specified at framing costs almost nothing to install. The same blocking added after drywall means cutting the wall, setting a member or steel plate, patching, taping, and repainting on a schedule that has no room for it.
The mailbox and locker rough opening is the other pre-framing deliverable. USPS-approved 4C mailbox systems require a minimum mounting depth of 15 inches from the face of the opening to the back wall, and the alcove has to be framed to provide it. Those dimensions come from the sub, not from a GC assumption about standard depths, and they should land as one package covering every bank location rather than piecemeal as each wall comes up in the sequence. Package lockers carry their own depth and power requirements and belong in the same review.
Wire shelving deserves the same attention. Ventilated shelving loaded with clothing and linens will pull out of drywall over a tenancy. The sub should confirm that closet bracket layouts hit studs, and where they do not, specify structural anchors rated for the load or backing set during framing. Confirm the approach before installation, not after the first warranty callback.
ADA signage requirements
ADA signage catches more multifamily projects at inspection than any other Division 10 item, because the rules are specific and the tolerances are tight. The 2010 ADA Standards for Accessible Design, Section 703, govern signs identifying permanent rooms and spaces: common restrooms, leasing and management offices, fitness and amenity rooms, stairwells, and accessible parking. Each of those needs tactile signage that meets the standard.
Four requirements drive most of the failures:
- Tactile characters. Section 703.2 requires raised characters between 5/8 inch and 2 inches high, in a sans-serif font, raised at least 1/32 inch above the sign surface.
- Braille. Section 703.3 requires contracted (Grade 2) Braille positioned below the corresponding tactile text.
- Non-glare finish and contrast. Section 703.5 requires a non-glare finish on characters and background, with at least 70 percent contrast between the two.
- Mounting height. Section 703.4.1 requires the baseline of the lowest tactile character to sit 48 inches minimum above the finish floor, and the baseline of the highest tactile character to sit 60 inches maximum above the finish floor, with the sign on the latch side of the door.
The mounting height plan is the most commonly missed submittal item. Require it from the sub before signage is ordered, and confirm the latch-side placement against the door schedule. A sign at the wrong height or on the hinge side is a correction on a completed wall.
What to require from your Division 10 sub
Judge a Division 10 sub on pre-construction discipline, not on installation crews. The installation is the easy part. Whether the sub shows up at the framing stage with the blocking plan is what separates a clean project from a punch list of opened walls. Require the following in writing:
- A unit-type accessory matrix that flags every accessible-unit location and the accessories that meet the accessible requirements.
- A blocking and backing plan delivered to the framing sub before wall layout, covering grab bars, accessories, corner guards, mailboxes, and lockers.
- Rough opening dimensions for every mailbox and locker bank, issued as one pre-framing package.
- A signage message schedule tied to the final door and room numbering, plus a mounting height plan.
- Knox box and fire extinguisher cabinet locations confirmed with the local fire authority before installation, since a Knox box set without approval is a certificate of occupancy risk.
- Product submittals citing the applicable standard for each item, so the architect can approve against the 2010 ADA Standards rather than a cut sheet alone.
A sub that hands you these without being chased is a sub that has run multifamily Division 10 before. One that treats them as extras will bill you back in corrections.
Regional notes for western multifamily
Across the western states we serve, TX, WA, OR, CO, UT, NM, and AZ, two conditions shape Division 10 work. First, mid-rise multifamily in these markets leans heavily on metal stud framing throughout unit interiors, which makes the blocking conversation non-negotiable. Grab bars, corner guards, and wire shelving all need backing set during framing, because metal studs plus drywall alone will not hold the loads. Second, Knox box and fire specialty requirements vary by local fire authority even within a single state, so the applicable jurisdiction has to be identified at pre-construction rather than assumed from a neighboring project.
The accessibility rules themselves travel with the federal 2010 ADA Standards, so grab bar strength, signage dimensions, and accessible-unit accessory placement read the same from Phoenix to Seattle. What changes is the local inspection posture and the fire authority process, and both are worth confirming before the sub orders product.
Common questions
What does a Division 10 specialties contractor do on a multifamily project? They supply and install the specialty finish items grouped under CSI MasterFormat Division 10: bath accessories, toilet partitions, signage, mailboxes and lockers, fire extinguisher cabinets, corner guards, and closet shelving. The real work is the pre-construction coordination, blocking plans, rough openings, and signage schedules, that makes the installation clean.
Why does Division 10 blocking have to happen before drywall? Grab bars, wall-hung accessories, corner guards, and mailbox banks mount to solid backing, and the 2010 ADA Standards require grab bar mounting to withstand 250 pounds of force. Blocking set during framing costs almost nothing. Blocking added after drywall means opening, patching, and repainting the wall.
What are the ADA signage rules for multifamily? The 2010 ADA Standards, Section 703, require tactile characters 5/8 to 2 inches high, contracted Grade 2 Braille, a non-glare finish with 70 percent contrast, and mounting with the lowest tactile character 48 inches minimum and the highest 60 inches maximum above the finish floor, on the latch side of the door.
Should Division 10 be one subcontract or several suppliers? One subcontract. A single sub owns the seams between blocking, rough openings, and signage schedules. Split the scope across suppliers and the coordination steps fall between them and resurface as corrections at closeout.
Innergy Interiors covers the full Division 10 specialties package for multifamily construction under a single subcontract, with blocking plans, rough openings, and signage schedules delivered at pre-construction. To scope Division 10 on your next project, contact us and we respond within one business day.
Related: What the Division 10 Package Includes · ADA Signage Requirements · Grab Bar Blocking Requirements · 4C Mailbox Requirements · Toilet Partition Specification Guide · Fire Extinguisher Cabinet Requirements