Guide
Product Guide Hemlock Doors & Millwork

Hemlock HEM 5/8″ x 2-1/4″ Ranch Colonial Casing

Hemlock trim solves the pitch problem that plagues pine casing. The 5/8” x 2-1/4” profile gives you clean lines without resin bleed-through ruining your stain job. At approximately 30 lbs/ft³, Western Hemlock machines easier than oak yet holds up better than common pine.

Skip this if you’re painting everything white anyway. Pine’s cheaper and works fine under primer. But for stained trim where grain matters, hemlock’s lack of pitch pockets and knots means uniform color absorption — no blotchy surprises three coats in.

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Specifications That Matter

The dimensions work with standard door and window installations across Montana homes:

SpecificationValue
Thickness5/8 inch (0.625”)
Width2-1/4 inch (2.25”)
Standard Lengths7 ft, 10 ft, 12 ft, 14 ft, Random Length
Profile OptionsColonial (WM356/H239), Ranch (WM346)
Wood DensityApprox 30 lbs/ft³ (dry)
Grain PatternStraight, fine, uniform texture

The 2-1/4” width pairs with standard 4-9/16” or 6-9/16” interior door jambs — no custom milling needed. Works best with 3-1/4” or 4-1/4” Ranch or Colonial baseboards for visual continuity.

Random length bundles average 7 to 16 feet, with production typically taking 7 to 10 business days. Order ahead during busy season.

Why Contractors Choose Hemlock Over Pine

The real difference shows in the finishing room. Hemlock lacks pitch and resin — period. No bleed-through prevention needed, no sealer coats to block sap. That’s why it takes stain more evenly than pine, which tends to develop those dark pitch pockets that show through even multiple coats.

The wood’s harder than common pine yet still works easily with standard carpentry tools. Clear grade (C & Better) typically arrives free of knots and defects — less waste, cleaner installations.

The straight, fine grain resists twisting and warping. Montana’s humidity swings from bone-dry winters to spring snowmelt won’t bow these boards like softer species.

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Installation That Works

Cut with a 60-tooth or higher carbide-tipped blade on your miter saw. Anything less tears the grain on cross-cuts. Fasten with 1-1/2” to 2” finish nails — 16 or 18-gauge work equally well. Space them every 12-16 inches.

Pre-drilling near the ends prevents splitting, though the stable grain handles nails better than most woods. Standard miter joints at corners. Wood glue on the miters ensures tight seams that won’t open as the wood moves.

For staining, hit it with 180 grit and apply wood conditioner first. Clear coats highlight the natural grain pattern — that creamy white to reddish-purple cast hemlock’s known for.

Some contractors note the wood can be slightly brittle, requiring sharp blades to avoid splintering during cuts. Keep your tools maintained and this won’t be an issue.

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Where It Beats The Competition

Hemlock’s more durable than MDF, offers real wood grain, and handles moisture better than any composite. Against oak, it’s the cost-effective choice that still delivers a quality wood appearance when finished.

Standard applications include interior door casing, window trim, baseboard transitions, and wall accents. The profile works anywhere you need clean transitions between surfaces.

FSC and PEFC certified options available for builders chasing green certifications. Meets standard WM series moulding profiles.

The warranty covers manufacturing defects for one year — typical for millwork. But hemlock’s reputation for stability means warranty claims stay rare.

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The Verdict

Hemlock casing costs more than pine but less than hardwood. Contractors value it for being cost-effective, readily available, and easy to work with — suitable for both painting and staining. The lack of pitch alone saves enough finishing headaches to justify the price bump over pine.

Professional contractors appreciate its durability and aesthetically appealing finish for trim applications. If you’re staining interior trim and want predictable results, hemlock delivers. For painted trim where grain doesn’t show, save money with pine. But when the finish matters, hemlock’s superior workability earns its place in the trim package.

Frequently Asked Questions

What’s the actual difference between Colonial and Ranch profiles?

Colonial (WM356/H239) features decorative curves and steps for traditional aesthetics. Ranch (WM346) has a single rounded edge for contemporary looks. Colonial adds visual weight to doorways; Ranch keeps lines clean and minimal.

Does hemlock casing work for exterior applications?

Yes, hemlock handles both interior and exterior installations, especially in protected environments or when properly sealed and painted. Montana’s freeze-thaw cycles demand good sealing on any exterior wood trim.

How does hemlock compare to finger-jointed pine for trim?

Hemlock typically comes in clear grade without joints, while finger-jointed pine uses smaller pieces glued together. Hemlock’s continuous grain looks better under stain. Finger-joint shows through stain but disappears under paint.

What blade works best to prevent splintering?

Use a 60-tooth or higher carbide-tipped blade for clean cuts. The wood can be slightly brittle, so sharp blades prevent splintering during cross-cuts. Dull blades tear the grain and waste material.

Does this casing width work with standard door jambs?

Yes, the 2-1/4” width works with standard 4-9/16” or 6-9/16” interior door jambs. No special jamb sizes needed — it’s designed for typical residential door installations.

Ready to Get Started?

Our doors & millwork specialists can help you find the right Hemlock products for your project.