This guide highlights glass doors with mullions—grid patterns that divide glass into smaller panes—for American homes. Each selected product balances style, durability, and ease of installation. The list focuses on ready-to-install door inserts, glass kits, and mullioned panels compatible with common door standards. Use the buying guide to compare construction, sizes, and framing options so you can choose the best fit for your interior or entryway projects.
Summary of Selected Products
- ODL Entry Door Glass Replacement Kit — 24″ x 38″ frame, energy-efficient glass
- ODL Exterior Door Glass Replacement Kit — 24″ x 38″ frame with low-E glass
- 22 x 36 Entry Door Clear Glass Insert (9 Lite) — white frame, grid 9-lite
- 20 x 36 Entry Door Clear Glass Insert (9 Lite External Grids) — white frame
- JUJUBON 36″x80″ CARB P2 Solid Core Door Slab — full glass with grid options
Best 22 x 36 Entry Door With 9-Lite Mullions
The 22 x 36 entry door insert combines a white frame with a nine-lite grid pattern, delivering a classic mullioned look while using tempered safety glass. This kit is designed for quick replacement in steel or fiberglass doors and includes all installation hardware. The exterior frame comes with a pre-applied glaze to simplify assembly. Replacements are intended for same-size openings and typically require two people for safe installation. Installation instructions are available from the manufacturer’s technical resources.
Best 20 x 36 Entry Door Glass Lite Kit
This 20 x 36 kit provides a nine-lite external grid in a white frame, mirroring mullioned aesthetics. It includes tempered safety glass and maintenance-free frames with pre-applied dry glaze for simple assembly. The replacement process is typically straightforward but benefits from two installers for safety. It is suitable for standard door openings and aims to extend the life of an existing entry door by upgrading the glass panel rather than replacing the entire door.
Best ODL Glass Replacement For 24″ x 38″ Door
This ODL kit is designed to replace a 24″ x 38″ door glass panel in steel or fiberglass doors with an exterior frame. It includes an insulated glass panel, a complete door glass frame set, screws, and screw covers. The frame accommodates a 1-3/4″ thick door and typically installs in under an hour with standard tools. The kit’s design emphasizes energy efficiency through a low-E double-pane tempered glass option and offers a cost-effective alternative to full door replacement.
Best ODL Exterior Glass Replacement Kit
This ODL glass kit mirrors the pattern of a mullion-style entry with a 24″ x 38″ frame and a low-E tempered glass option. It provides a complete replacement solution for half-light or mullioned panels, compatible with steel or fiberglass doors of the same thickness. The installation process is described as straightforward, with two people recommended. It is positioned as a budget-conscious upgrade that refreshes curb appeal and energy performance without a full door swap.
Best JUJUBON 36-Inch Door Slab With Clear Glass
This JUJUBON door slab delivers a 36″ width across an 80″ height, with a 1.38″ thickness and a clear tempered glass panel. It is built on CARB P2 certified MDF with a PVC film surface, offering a durable, paint-ready finish. The product is designed as a full door slab without prehung hardware, intended for projects where you replace the door panel only. It supports painting and finishing to match interior styles, with careful measurement advised to ensure proper fit in the opening.
Buying Guide
- Grid pattern and mullion style: Mullions range from simple 4-lite grids to intricate 9-lite patterns. Consider whether you want an external grid on the glass or a frame-milled grid inside the panel, as this affects maintenance and durability.
- Frame material and finish: Most products use white frames or natural wood-like finishes. Align frame color with surrounding trim and preexisting doors to maintain consistency.
- Glass type and energy efficiency: Look for tempered safety glass and energy-efficient double panes with low-E coatings for exterior doors. These features reduce heat transfer and improve security.
- Door compatibility: Ensure the kit size matches your door opening (e.g., 24″ x 38″ or 22″ x 36″). Verify door thickness compatibility (commonly 1-3/4″).
- Installation approach: Replacement kits are designed for quick swaps but may require two installers for safety. DIY readiness depends on your comfort with tools and measurement accuracy.
- Maintenance and coatings: Some maintenance-free frames resist staining and do not require finishing. If you plan to stain or paint, choose a kit compatible with PVC or plastic frames and appropriate primers.
- Budget and long-term value: Replacing a glass insert can extend the life of an existing door and enhance curb appeal at a fraction of full-door replacement. Compare energy savings, ease of installation, and warranty terms.
- Warranty and support: Check whether the kit includes hardware, sealants, or screw covers, and whether technical instructions are provided for installation and painting or finishing guidance.