The H8 delivers what Montana contractors need most from an interior door: exceptional lightness at 32 pounds for a 36x80 slab. This hollow core door cuts installer fatigue on multi-unit projects where crews hang dozens of doors per day. CARB Phase II compliant and TSCA Title VI compliant certifications mean it meets environmental standards required for government buildings, schools, and healthcare facilities across Montana.
Weight Advantage and Installation Reality
The numbers tell the efficiency story. 32 lbs for a 36x80 door compares favorably against particle core alternatives that typically weigh 50-60 pounds. That 20-30 pound difference multiplies across a 40-unit apartment complex or school renovation. Crews move faster, backs hurt less, and jobs finish sooner.
Actual slab width measures 0.19 inches less than nominal — critical knowledge for proper frame fitting. A 36-inch door actually measures 35.81 inches. Montana contractors working at elevation appreciate these precise measurements when shimming frames in cold weather.
| Specification | Value |
|---|---|
| Thickness | 1-3/8 inches (non-rated) |
| Weight (36x80) | 32 lbs |
| Standard Widths | 24”, 28”, 30”, 32”, 36” |
| Actual Width | Nominal width minus 0.19 inches |
| Construction | Bonded sanded core assembly |
Environmental Compliance Without the Premium
CARB Phase II compliant and TSCA Title VI compliant status matters when bidding institutional work. Montana school districts increasingly specify these standards. The H8 meets requirements without the premium often associated with environmentally-compliant door lines.
EPD (Environmental Product Declaration) available provides transparency for LEED projects. FSC (Forest Stewardship Council) certification available company-wide opens doors to environmentally-conscious commercial projects. Face material options include MDF, Hardboard, HDF, Wood Veneer, and Laminate (HPDL), giving contractors flexibility to match project specifications and budgets.
Where It Works (And Where It Doesn’t)
Interior passage doors and bifold doors represent the sweet spot for this door. Perfect for Residential (single-family homes, multi-family housing) and Light Commercial (offices, tenant improvements, schools). The hollow core construction keeps costs down for budget-conscious projects.
Not intended for high-traffic commercial, institutional, or heavy industrial use. Lynden makes that clear — contractors wanting heavy-duty performance need their CD or IC series. This honesty prevents callbacks and warranty issues.
Comparison to Other Lynden Options
Understanding where the H8 fits in Lynden’s lineup helps contractors choose correctly:
- H4: Hollow core with 1-3/4” thickness (thicker/sturdier than H8)
- P8: Particleboard core with 1-3/8” thickness (solid-core feel, better sound attenuation)
- P4: Particleboard core with 1-3/4” thickness
- P20: Particleboard core 1-3/4” with a 20-minute fire rating
The H8 sacrifices sound attenuation and fire ratings for lightness and cost savings. Right choice for bedrooms and closets. Wrong choice for mechanical rooms or offices needing privacy.
Installation and Warranty
Acclimatization to jobsite conditions before installation prevents warping — especially critical in Montana’s dry climate. Storage on flat, level surfaces in dry, temperature-controlled environments maintains door integrity before hanging.
1-Year Limited Warranty covers manufacturing defects in materials and workmanship for interior use. Standard coverage for hollow core doors. The warranty specifically mentions interior use only — no exterior applications.
Compatible with standard residential and light-commercial interior jambs/frames and standard 1-3/8” interior door hardware (hinges, knobs, levers). No special hardware required.
Bottom Line
The H8 earns its place on Montana jobsites through lightweight efficiency and environmental compliance. Perfect for multi-family projects where crews hang dozens of identical doors. The 32-pound weight saves backs and speeds installation. CARB and TSCA compliance opens institutional markets.
Not every application needs a solid core door. For standard interior passages in apartments, offices, and schools, the H8 delivers exactly what’s needed — nothing more, nothing less. Montana contractors appreciate products that do their job without pretense. This door qualifies.
FAQ
What’s the actual width of a 36-inch H8 door? 35.81 inches. The actual slab width runs 0.19 inches less than nominal on all sizes. Factor this into your frame prep.
Can I use the H8 for a mechanical room that needs a fire rating? No. This door has no fire rating for the 1-3/8” thickness. Look at Lynden’s P20 with its 20-minute fire rating for applications requiring fire-rated assemblies.
How much lighter is the H8 compared to particle core doors? The H8 weighs 32 pounds for a standard 36x80 door. Particle core doors typically weigh 50-60 pounds in the same size. That’s a 40-50% weight reduction.
Does the hollow core construction meet environmental standards? Yes. CARB Phase II and TSCA Title VI compliance meet formaldehyde emission standards for institutional projects.
What face materials can I specify? MDF, Hardboard, HDF, Wood Veneer, or Laminate (HPDL). Each affects final appearance and durability differently.
Ready to Get Started?
Our doors & millwork specialists can help you find the right Lynden Door products for your project.
More from Lynden Door
Explore All Lynden Door Products
We carry Lynden Door across all 11 Montana and Idaho stores.
