PVC Trimboard 1″ x 5-1/2″ x 12′ — Woodgrain / Smooth, White
$42.90
Sealed cellular PVC trimboard, 1 inch by 5-1/2 inches by 12 feet. Woodgrain on one face, smooth on the other — you choose at installation. Edges sealed on all four sides. White through the full thickness. No rot, no insects, no swelling.
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
Piece by piece, 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.
Corner boards, fascia, rake and window surrounds come in three materials. Painted and up on the wall they look the same. What separates them is what happens at a cut end after a few winters of rain, salt and freeze-thaw.
- What it is
- Finger-jointed softwood, primed at the mill. Wood all the way through.
- What it needs
- Two topcoats on all faces, every cut end sealed before it goes up, and repainting on a cycle.
- What goes first
- The cut ends and the nail holes, where the paint film is thinnest. Water gets behind the primer and the finger joints start to telegraph through.
The cheapest board on the shelf, and honest work as long as somebody keeps it painted. Around here, somebody usually does not.
- What it is
- Closed-cell foamed PVC, the same material right through. Saw it anywhere and the cut face looks like the surface — there is no veneer and no core.
- What it needs
- Nothing for protection. Paint only if you want a colour other than the one you bought, and then 100 % acrylic latex.
- What goes first
- Not rot and not insects — there is no wood fibre in it to rot or to eat. What it does do is move with temperature, so it has to be gapped and fastened properly. The working instructions on this page are not optional reading.
Cellular PVC used to sit at a long premium over paint-grade wood. It does not any more. The difference between the two shows up in year three, not on the invoice.
- What it is
- Cement, sand and cellulose, pressed into board. Dense and heavy.
- What it needs
- Painting like wood, ends sealed, and two people for the long pieces.
- What goes first
- Not the board. The corners chip on site, and cutting it throws silica dust, so it wants a proper blade and a mask.
It will not rot and it will not burn, and in the right job that is worth paying for. It is also the most awkward of the three to work, and the local yards do not keep the trim on the shelf.
Two things none of this changes. Trim is not structural — it carries itself and nothing else, whatever it is made of. And this board is not fire-rated. PVC burns. If a fire rating is in the specification, fibre cement is the answer and we will tell you so rather than sell you this.
Why cellular PVC against wood and fibre cement, the full range in white and black, working instructions, and all three price channels.
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