TerraMai's Premium Grade Teak offers the least amount of character.
Premium Grade Teak includes prefilled nail and other holes but does not include mortise pockets. Premium Grade is also more restrictive around such things as bore holes, knots and sapwood, as detailed below.
Premium Grade Teak is appropriate for a full range of applications, including flooring, paneling, siding, decking and custom products.
Nail & Fastener Holes: Unlimited up to 2.5 cm wide. 2.5 cm and larger limited to four per 4' length. Maximum hole size of 4 cm (1 9/16") wide. All holes prefilled with teak and/or epoxy.
Insect Bore Holes: Limited to 3/4" x 3" or to an approximate total surface area of 2 1/2 square inches. Limited in quantity to two per 6' length. Prefilled with teak and/or epoxy.
Mortise Pockets: Not allowed
Knots: Sound and tight only. Maximum size not to exceed half the face width of the material. No spike knots that compromise structural integrity allowed. Knot checks and voids prefilled with epoxy.
Checking: Surface checks only. Unlimited in size and quantity. Prefilled with epoxy.
End Splits: Only prefilled splits allowed - prefilled with epoxy.
Decay, Shake, Pith, Wane, Warp: All visible surfaces to be sound material free of decay, shake, pith, wane and warp.
Sapwood: Not allowed on best face. Limited to 25% of reverse face.
Color Variation: Unlimited in naturally occurring color variation (not including sapwood).
Note: The panel shown here includes approximately the full range of character and variation found in this grade. In an actual installation, this character would be dispersed throughout an entire space.