
XPS Foam Tile Backer Board — 1/2" × 3' × 5'
- 1/2 in thick, 3 × 5 ft sheet
- Waterproof & vapor retarding
- Cuts with a utility knife
Tacoma, WA · Serving Puget Sound
Waterproofing, shower systems, plumbing, strut, and flooring, stocked in Tacoma for Puget Sound contractors.

Product categories

Foam backer board, seam sealant, decoupling membrane, screws & washers.
Shop Waterproofing
Pre-sloped shower pans, niches, and stainless linear drains.
Shop Shower Systems
Ball valves, pipe fittings, copper press, and PEX fittings.
Shop Plumbing
Steel outlet boxes, EMT conduit, and EMT fittings.
Shop Electrical
Strut channel, threaded rod, nuts, washers, beam & pipe clamps.
Shop Strut & Support
12mm AC4 waterproof laminate flooring by the box or pallet.
Shop FlooringWhy Apteum
Direct-import sourcing means trade pricing on every line — not retail markup.
Buy by the case, bundle, or pallet and the per-piece price drops automatically.
Stocked locally. Load up at our Tacoma yard or ask about jobsite delivery.
Send your material list and get a written quote back within 24 hours.
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Upload a takeoff, plans, or a photo of your list — we'll price it out.