LHR Exterior Door - KD Retrofit for Block/CMU (RO 40-1/2â€³ Ã— 86-1/4â€³)

Engineered for Compliance, Trusted by Inspectors.

LHR Exterior Door - KD Retrofit for Block/CMU (RO 40-1/2â€³ Ã— 86-1/4â€³) - Image 1 of 0

LHR Exterior Door - KD Retrofit for Block/CMU (RO 40-1/2â€³ Ã— 86-1/4â€³) - Video 2 of 1

Exterior Hollow Metal Door, LHR For Block/CMU Wall (Existing Opening RO 40-1/2" x 86-1/4"), KD Punch & Dimple Retrofit Frame w/ Expansion Anchors, USA-Made (3-4 Week Production)

$

Choose your options:

Frame Jamb Depth:

4-3/4" Jamb Depth (3-3/4" Throat)

5-3/4" Jamb Depth (4-3/4" Throat)

6-1/4" Jamb Depth (5-1/4" Throat)

6-3/4" Jamb Depth (5-3/4" Throat)

7-1/4" Jamb Depth (6-1/4" Throat)

7-3/4" Jamb Depth (6-3/4" Throat)

8-1/4" Jamb Depth (7-1/4" Throat)

8-3/4" Jamb Depth (7-3/4" Throat)

9-1/4" Jamb Depth (8-1/4" Throat)

ADA Glass Window

ADA Glass Window:

No Thanks

6 in. Wide x 27 in. Narrow Window, 1/4" Tempered Clear Glass (No Fire Label)

6 in. Wide x 27 in. Tall Fire Rated Narrow Window, 1/4" Laminated Wire Glass

12 in. Wide x 12 in. Square Window, 1/4" Tempered Clear Glass (No Fire Label)

12 in. Wide x 12 in. Tall Fire Rated Square Window, 1/4" Laminated Wire Glass

24 in. Wide x 30 in. Tall Half Lite Window, 1/4" Tempered Clear Glass (No Fire Label)

24in. x 64 in. Full Lite Window, 1/4" Tempered Clear Glass (No Fire Label)

Frame Header:

2 in. Frame Header (Standard)

4 in. Frame Header

Product Code: SLTBWWT3070LHR

Inspection-Ready, Built to Spec, 3 to 4 Week Production

Orders Over $200 Qualify for FREE SHIPPING!

Qty:

Steel-Lite™ Exterior Hollow Metal Door - LHR, Retrofit for Block/CMU Wall

Application-first package for existing block/CMU wall openings: a Left Hand Reverse (LHR) exterior hollow metal door paired with a KD punch & dimple retrofit masonry frame and CMU-compatible sleeve/expansion anchors. Optimized for the common retrofit rough opening (RO) 40-1/2" wide × 86-1/4" tall and corresponding outside frame size of ~40" × 86". USA-made with dependable 3–4 week production.

Application-First Details

Wall Type: Existing block/CMU (retrofit).
Frame: KD punch & dimple retrofit masonry frame; ships knock-down for easier handling and in-place assembly.
Anchoring: Supplied with sleeve/expansion anchors sized for CMU/block; shim and fasten per submittals.
Perimeter Sealing: Ready for backer rod & sealant and exterior weatherstripping/threshold kits (recommended for exposure).
Handing:Left Hand Reverse (LHR)—confirm swing direction onsite.

Door Construction

Skins: 18-gauge galvannealed steel (A40/A60), prime painted for field finish.
Core: Insulated core for thermal performance (standard non-rated configuration).
Edges & Reinforcements: Interlocked seams with reinforcement at hinges, lock/exit, and closer.
Exterior Use: Pair with specified threshold and weather seals for long-term performance in the elements.

Frame & Installation – Existing Block/CMU Wall

KD punch & dimple masonry frame designed for CMU/block; assembles square on site.
Anchors: Sleeve/expansion anchors for block; follow embedment depths and torque values per submittals.
Fit-Up: Target reveals/clearances for first-time fit; factory strike and silencers matched to LHR handing.
Optional Grout: Grout frame legs if required by UL listing or AHJ.

Hardware & Compliance Options

Hardware: Prepared for ANSI/BHMA Grade 1 closers, hinges, and locks; hardware kits available per quote.
Labeling:OptionalUL/cUL fire door labeling and NFPA 80 compliance available when furnished as a complete labeled assembly with rated core and listed components.

Note: If a labeled fire door is required, specify the appropriate fire-rated core and listed frame/hardware to match the UL procedure and AHJ requirements.

Key Specifications (Application-Focused)

Product	Steel-Lite™ Exterior Hollow Metal Door – LHR
Wall Type	Existing block/CMU wall opening (retrofit)
Rough Opening (RO)	40-1/2" W × 86-1/4" H (typical)
Outside Frame Size	~40" W × 86" H (reference)
Frame	KD punch & dimple retrofit frame; CMU sleeve/expansion anchors
Door Skins	18-ga galvannealed steel, prime painted
Core	Insulated (standard non-rated)
Handing	LHR (Left Hand Reverse)
Country of Manufacture	USA
Lead Time	3–4 week production (standard)

Important Notes

Verify block thickness, anchor selection/length, and RO against approved shop drawings before installation.
Final ADA/IBC compliance depends on field conditions (clearances, thresholds) and closer/lock adjustments.
Finish paint, glazing, weather seals, and hardware kits are furnished per quote—confirm inclusions on your proposal.