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Floor in a Flash
Photo: David Carmack
installing a prefinished engineered wood floor
David Carmack
installing engineered floor planks
Photo: David Carmack
gluing down engineered wood planks
Photo: David Carmack
space around engineered wood floor perimeter
Photo: David Carmack
flat-cut Brazilian cherry, rotary-cut red oak, flat-cut larch pine, flat-cut oak
Photo: Kay Boecker
laminate flooring tiles
Photo: Kay Boecker

Using a pneumatic stapler, installer Jeff Hosking lays a prefinished engineered wood floor that has a Santos mahogany surface veneer

Using a pneumatic stapler, installer Jeff Hosking lays a prefinished engineered wood floor that has a Santos mahogany surface veneer.

Engineered planks need not be fastened to the subfloor, but they must be glued to each other; adhesive in the tongues and grooves is what seals the joints from water.

Unless he's installing the floor over concrete or foam insulation, Hosking typically staples the boards down, but he glues them down around radiatiors where his stapler won't reach.

A 1/2-inch space around the floor's perimeter allows the wood to expand.

Clockwise from top: flat-cut Brazilian cherry; rotary-cut red oak; flat-cut larch pine; flat-cut oak in a 7 1/2-inch-by-8-foot plank that contains three board-widths.

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Grainy Pictures

Not all substitutes for solid wood floors are made from plywood. A cheaper alternative, laminate flooring, gets its appearance from a photographic image of wood. Glued to a fiberboard core, the picture is protected on top by a clear finish. The resulting sandwich comes in grooved panels. They're installed with glue, much like engineered wood. Floor expert Jeff Hosking says laminate is more scratch-resistant than any wood floor — but once it does scratch, the damage is permanent. Laminate can't be sanded. "I expect plastic laminate floors to last 8 to 15 years," he says. "By then the homeowner gets tired of looking at the scratches and replaces the floor." Hosking says laminate, which costs $2.50 to $5 per square foot (plus $2 or $3 per square foot for installation) can be a good choice in laundry rooms or bathrooms because it is highly water-resistant — if the glue is properly applied. The adhesive is what make the joints watertight. "If it isn't done right, water can get down in the pressed board, and the floor will cup and curl," he says.

Flooring Options

1 Its five plys offer dimensional stability, but this flooring has only a 1/16-inch surface veneer, which can't be sanded and refinished when it's scuffed.

2 Solid oak flooring , by comparison, has a 5/16-inch surface veneer (the wood above the tongue) and can be sanded up to seven times.

3 Some engineered flooring comes assembled in a panel for fast installation, but still offers the appearance of narrow floorboards.

4 Planks that are 3/8-inch thick must be nailed in place...

5 ...while planks with a 9/16-inch total thickness can be floated.

6 These six-ply boards have a hefty 3/8-inch birch top layer; note the beveled edges where the boards meet.

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Article: Beyond the Basic Floor
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