S4S Marine Grade Teak Lumber Board, 21 mm x 7.5 x 36 Inch

Dimensions (inches)

• Finished Thickness: 0.83 in (21 mm)

• Listed/Nominal Thickness: 1 in

• Width: 7.5 in

• Length: 36 in

• Quantity: 1 board

• Actual Wood Volume: Approx. 1.55 board ft

• Nominal Wood Volume: 1.88 board ft

Important sizing note: A finished thickness of 21 mm equals approximately 0.83 inch, not a full 1 inch. The board may be sold as nominal 1-inch lumber, but Amazon listing attributes should show the actual finished S4S thickness as 21 mm or 0.83 inch to prevent buyer disputes.

Bullet Points

• Single S4S Teak Board: Includes one solid teak lumber board surfaced on all four sides with a finished size of 21 mm thick, 7.5 inches wide, and 36 inches long.

• Marine Grade Selection: Suitable for boat interiors, yacht restoration, deck margins, cockpit trim, cabinetry, furniture, shelving, and custom marine joinery.

• Kiln-Dried Lumber: Moisture controlled to approximately 8–10% MC for improved dimensional consistency during cutting, machining, and indoor fabrication.

• Smooth Four-Sided Surface: S4S preparation provides smooth faces and square edges, reducing preliminary planing and simplifying project layout.

• Wide Hardwood Board: The 7.5-inch width provides useful material for shelves, cabinet components, table parts, covering boards, panels, and decorative trim.

• Natural Teak Character: Warm golden-brown tones, visible grain patterns, and naturally occurring color variations give every board an individual appearance.

• Versatile Woodworking Stock: Suitable for sawing, routing, drilling, sanding, shaping, bonding, fastening, carving, and finishing.

• South Asian Teak Lumber: Supplied as genuine teak sourced from South Asia for professional marine, furniture, and architectural woodworking projects.

Detailed Product Description

Create marine components, furniture, cabinetry, and architectural woodwork with this single S4S marine-grade teak lumber board. The board is supplied at a finished thickness of 21 mm, with a width of 7.5 inches and a length of 36 inches.

Although commonly categorized as nominal 1-inch lumber, the actual finished S4S thickness is approximately 0.83 inch. Surfacing on all four sides produces smooth faces and finished edges, providing a more consistent profile for measuring, cutting, routing, joining, and final fabrication.

The broad 7.5-inch width makes this board suitable for boat cabinetry, yacht interiors, deck margins, covering boards, shelves, cabinet doors, table components, furniture parts, thresholds, trim, and other custom woodworking applications.

The teak is kiln dried to approximately 8–10% moisture content, helping improve dimensional consistency before fabrication. Actual moisture content can vary slightly according to storage conditions, destination climate, and the measuring instrument used.

Teak is widely selected for marine and premium woodworking because of its dense grain, natural oils, warm coloration, and refined appearance. The board can be machined and finished according to the requirements of the intended project.

Because teak naturally contains oils, bonding surfaces should be properly prepared, and adhesives, primers, sealants, and finishes should be selected specifically for teak or other oily hardwoods.

Natural wood variations are expected. Individual boards may differ in grain direction, color, tone, texture, mineral markings, and surface character. Allow additional material for trimming, final sizing, grain matching, cutting losses, and project tolerances.

Product Specifications

• Product Type: Solid teak lumber board

• Quantity: 1 board

• Wood Species: Teak

• Grade Description: Marine grade

• Origin Description: South Asian teak

• Surface Preparation: S4S, surfaced four sides

• Drying Method: Kiln dried

• Moisture Content: Approximately 8–10%

• Finished Thickness: 21 mm / 0.83 in

• Nominal Thickness: 1 in

• Width: 7.5 in

• Length: 36 in

• Actual Wood Volume: Approximately 1.55 board ft

• Nominal Wood Volume: 1.88 board ft

• Color: Natural golden-brown

• Recommended Applications: Marine joinery, yacht restoration, cabinetry, furniture, shelving, panels, trim, margins, and architectural woodworking

Package Contents

• 1 × S4S Marine-Grade Teak Lumber Board