Riga Door Frame Extension Kit - 20" taller (XL)
Riga XL Door Frame Extension Kit – +20" Height | Both Doors Included
The Riga XL Door Frame Extension Kit adds 20 inches of height to both door frames of your Riga XL greenhouse when the structure is mounted on a raised foundation. It fills the gap above each door opening that results from elevating the greenhouse, eliminating the need to build a custom step-over or workaround. This kit includes all parts required to extend both of the Riga XL’s doors.
*Free shipping only when purchased together with a Riga greenhouse. Ordered separately, standard shipping rates apply.
Key Features
- Adds 20" of height to the Riga XL door frames
- Covers both doors — the Riga XL has two doors; this kit includes parts for both
- Designed for raised foundation installations — fills the gap above each door opening
- Compatible with the Riga XL greenhouse model only
- Eliminates the need for custom step-overs or workarounds at either door
- Purpose-built Riga accessory — no modifications required
Specifications
| Height Added | 20 inches per door |
| Doors Covered | Both Riga XL doors (kit includes parts for 2 doors) |
| Compatible Models | Riga XL only |
| Use Case | Raised foundation installations |
| SKU | RIGA-DOOR-FRAME-EXT |
| Price | $1,299 |
| Shipping | Free when purchased with a Riga greenhouse; standard rates apply when ordered separately |
Why Is This Kit More Expensive Than Other Riga Extension Kits?
The Riga XL is the only model in the Riga series with two doors. This extension kit includes parts to extend both door frames, which is why it is priced at $1,299 — compared to $379 (IIs/IIIs/IVs) and $439 (III/IV/V) for the single-door kits. You are getting a complete two-door solution in one purchase.
When Do You Need This Kit?
When a Riga XL greenhouse is installed on a raised foundation — such as a concrete pad, timber base, or elevated platform — both door frames sit higher than the standard ground-level installation. This creates a gap above each door opening between the top of the door frame and the greenhouse structure. The Door Frame Extension Kit fills both gaps cleanly and professionally, restoring both doors to their intended appearance and function without custom fabrication.
If your Riga XL will be installed at ground level on a standard base kit, you do not need this extension kit.
Which Extension Kit Do I Need?
| Kit | Compatible Models | Doors Covered | Price |
|---|---|---|---|
| IIs/IIIs/IVs kit | Riga IIs, IIIs, IVs | 1 door | $379 |
| III/IV/V kit | Riga III, IV, V | 1 door | $439 |
| This kit | Riga XL only | 2 doors | $1,299 |
Frequently Asked Questions
Why does the Riga XL kit cost so much more than the other extension kits?
The Riga XL is the only Riga model with two doors. This kit includes parts to extend both door frames, making it a complete two-door solution. The other extension kits ($379 and $439) cover a single door each. The per-door cost of the XL kit is comparable to the other kits.
Is this kit compatible with any other Riga models besides the XL?
No — this kit is designed specifically for the Riga XL. For other Riga models, see the III/IV/V kit ($439) or the IIs/IIIs/IVs kit ($379).
Do I need this kit if I’m using the standard Riga XL base kit?
Not necessarily. The standard Riga base frame raises the greenhouse by 6 inches. Whether you need the door frame extension depends on the total height of your foundation. If you are installing on a raised concrete pad, timber platform, or other elevated foundation that significantly raises the greenhouse above ground level, this kit is recommended. Contact us with your foundation height and we’ll confirm whether the extension kit is needed.
Why is free shipping only available when purchased with a greenhouse?
The door frame extension kit ships free when ordered together with a Riga greenhouse because it can be included in the same shipment. When ordered separately, it ships as a standalone item and standard shipping rates apply.
Can I install this kit myself?
Yes — the extension kit is designed for straightforward installation without specialized tools. It attaches to the existing Riga XL door frames. Contact us if you need installation guidance specific to your setup.