Building Materials

Vinyl or Aluminum Siding: Panels, Soffit and Trim

Double 4 inch Dutch lap siding in woodgrain

A siding job is more than the panels. The soffit closes the underside of the roof overhang, the fascia covers the edge, and corner posts and J-channel finish every edge and opening.

We carry all of it, in vinyl and in aluminum.


Clapboard or Dutch lap

Both are horizontal panels. Clapboard is a straight, flat board. Dutch lap has a groove along the top of each board, which casts a deeper shadow line.

A "double 4 in" panel carries two 4 in boards, so each panel covers 8 in.

Double 4 inch Dutch lap siding in woodgrain

Vinyl siding

  • Sequoia Select vinyl siding: choose the series, then match the profile and colour with your counter.
  • Oxford Premium vinyl siding: choose the series, then match the profile and colour with your counter.
  • 7 in Board & Batten: vertical siding with 7 in exposure, 10 ft lengths and 17 pieces per carton.

Choose the siding series, profile and colour together. See the vinyl siding ranges and colour charts.

Vertical board and batten vinyl siding

Aluminum siding

ProfileExposureLengthTexture
Horizontal8 in12 ft 6 inSmooth or Woodgrain
Double 4 in clapboard2 by 4 in12 ft 6 inSmooth or Woodgrain
Double 4 in Dutch lap2 by 4 in12 ft 6 inWoodgrain
Double 5 in Dutch lap8 in12 ft 6 inWoodgrain
Vertical8 in10 ftSmooth or Woodgrain
Vertical V7 1/4 in9 ft 7 3/8 inSmooth or Woodgrain

Several aluminum profiles come in standard or heavy gauge. See the aluminum products.


Soffit: solid or vented

Vented soffit lets air into the attic. Solid soffit closes areas where ventilation is not needed. Ask the counter to match the soffit and ventilation layout to your siding job.

For aluminum soffit, compare 2-panel, 3-panel and 4-panel options, each solid or vented.

Two panel vented aluminum soffit

The trim that finishes it

  • Outside and inside corner posts for every corner.
  • J-channel around windows, doors and roof lines, in several face widths.
  • Undersill trim under windows, where the top course is cut.
  • Aluminum fascia in 4, 6 and 8 in, for the roof edge.
  • Roof edge and L-trim in aluminum.

For fascia and trim bent on site, ask for Gentek flatstock in a 98.5 ft coil or by the foot, or Building Store flatstock in a 100 ft coil. Match the flatstock brand and colour before ordering.

Match the colour to the siding series, profile and trim with your counter. Bring the series name, profile, colour, wall area and lineal feet of trim for your quote.