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MERSAWA - (Anisoptera spp.)

MERSAWA

Type : Light Hardwood

Durability : Moderately Durable 10-15

Treatability : Difficult to Treat

flooring door and window frames crates plywood packing cases Suitable for light construction boxes ceilings weather boards

Distribution

Very widely scattered, being found growing in peat swamp forests, low flat land and on hills.





General Description

Sapwood is not well-defined. Heartwood is light to dark yellow and darkens on exposure. Grain is shallowly to deeply interlocked. Texture is moderately coarse and even. Vessels are with simple perforations, medium-sized or moderately large, generally moderately few in number, exclusively solitary or predominantly solitary, with a few radial or oblique pairs that are diffused, but with a tendency to align in short oblique lines. Wood parenchyma is of both the apotracheal and paratracheal types; apotracheal type in scattered groups, locally joined to produce short tangential lines and also found associated with the vertical resin canals which are both diffused as well as in concentric series; paratracheal parenchyma is vasicentric, formi !Jg narrow borders to the vessels. Rays are of two distinct sizes; broader rays are medium-sized or moderately broad and distinct to the naked eye on the cross-section and conspicuous on the rad ial surface, producing a vague silver figure; the finer rays are interspersed among the broader rays.

Physical properties

Air-Dry Density: 515 - 735 kg/m³

Shrinkage Radial: 1.4 %

Tangential: 3.2 - 3.8 %

Seasoning: Dries very slowly with only slight degrade

Recommended Kiln Schedule: E

Mechanical Properties

(Tested in green condition)

Strength Group: C

Static Bending MOE: 9,200 - 12,600 N/mm²

MOR: 49 - 54 N/mm²

Compression Strength Perpendicular To Grain: 5.52 - 5.65 N/mm²

Parallel To Grain: 26.00 - 28.90 N/mm²

Shear Strength: 7.10 - 7.40 N/mm²

Working Properties

Planing: Difficult            Finish: Smooth

Boring: Easy                  Finish: Rough

Turning: Easy                Finish: Smooth

Nailing: Good

Usage Images

Flooring

Flooring

Flooring

Flooring

Flooring

Door and window frames

Door and window frames

Door and window frames

Door and window frames

Door and window frames

Door and window frames

Door and window frames

Door and window frames

Crates

Crates

Crates

Crates

Crates

Plywood

Plywood

Plywood

Plywood

Packing cases

Packing cases

Packing cases

Packing cases

Packing cases

Packing cases

Packing cases

Packing cases

Packing cases

Suitable for light construction

Suitable for light construction

Suitable for light construction

Boxes

Boxes

Boxes

Boxes

Ceilings

Ceilings

Ceilings

Weather boards

Weather boards

Weather boards

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