PVC Trimboard 1″ x 5-1/2″ x 12′ — Woodgrain / Smooth, White

A one-inch cellular PVC trimboard, 5-1/2 inches wide and 12 feet long, finished woodgrain on one face and smooth on the other. The edges are sealed at the factory, so the board arrives with a closed skin on all four sides instead of an open foam edge that drinks paint and shows a grey line after a winter.

Woodgrain on one side, smooth on the other

You pick the face when you install it. The woodgrain side reads as painted cedar from the street. The smooth side takes paint like a cabinet door. Almost everything sold over the counter in Atlantic Canada is smooth on both faces, so a job that wants texture turns into a special order. Here it is the same board, turned over.

It does not rot and it does not mind the weather

There is no wood fibre in cellular PVC. It will not rot, will not feed insects, and will not swell when the fog sits on the gable end for three days. Left bare it stays white. Painted, it holds the colour as long as the paint does — and because the white runs through the full thickness, a scratch or a saw cut does not expose a different colour underneath.

Working with it — the manufacturer’s own guidance

• Cutting. Standard woodworking equipment, carbide-tipped blades. Do not use fine-tooth metal-cutting blades. A rough cut edge comes from too much friction, poor support under the board or the wrong tooling — not from a bad board.
• Drilling and routing. Standard woodworking tools, carbide router bits. Clear the shavings out of a drill hole as you go so heat does not build up. Below 0 °C (32 °F), pre-drill before nailing.
• Fastening. Stainless steel or hot-dipped galvanized nails or screws. No staples, no brads, no wire nails — a fastener you can bend with your fingers will not hold. It has to reach at least 1-1/2 inches into solid wood, two fasteners at every framing member, and within 2 inches of each end.
• Gluing. PVC cement, edge or face, on clean dry surfaces. Glue alone is not enough for a lasting bond: BOTO specifies glue and mechanical fasteners together, and the joints between pieces glued so they cannot separate.
• Spanning. Fine for fascias, soffits and ceilings. Never load-bearing. Beyond 16 inches on centre you need a 1/2-inch plywood or OSB backer with construction adhesive, fastened at least every 16 inches.
• Expansion. BOTO’s own figure is 1/8 inch per 18 feet. Fasten along the full length and glue the joints and the movement stays where you put it; leave the expansion space at the ends of a long glued run, never in the middle of it.
• Storage. Flat and level — it takes the shape of whatever it is stored on. Not on asphalt, not anywhere heat builds up.
• Painting. It does not need paint, but it holds paint well. 100 % acrylic latex only, and the manufacturer advises against dark colours. Fill nail holes with an exterior sandable spackle first.

What it is not

It is not structural. Cellular PVC carries its own weight and nothing else — it is not a header, not a stair tread, not a load-bearing member.

It is also not a fire-rated product. We do not hold an ASTM E84 report for this item and will not quote a flame-spread class for it. If your job requires a rated assembly, specify a rated material.

Specifications

• Actual size 25 × 140 × 3,660 mm (1″ × 5-1/2″ × 12′)
• Faces: woodgrain one side, smooth the other
• Edges sealed on all four sides
• Colour white through the full thickness
• 6.6 kg per board
• Factory bundle: 68 boards

Three ways to buy

From stock in Stratford, by the factory bundle, or by reserving a share of the next container before it ships. The price block above shows all three. Nothing is held back and there is no sale price — the number depends only on how you buy.