Robust Liners Measurement & MSRP Calculator

Continue saved measurements

Each private reference opens one form. Starting a separate form saves the measurements currently entered, then gives the new form its own reference. Keep each reference in a note or file on your phone. A count of filled boxes describes one form, not the number of saved forms.

Checking recent saved measurements…

1Project information

Start here: enter your customer name before taking measurements. This name stays with your saved measurements and appears on every drawing sheet.

Customer name

Phone

For a short interruption, keep this form open or return in the same phone browser within one hour. Entries are stored as you type; the message below shows whether an online copy was confirmed. You do not need to press Save Measurements for this short return. For a return on another device or within the next 90 days, press Save Measurements and wait for the “Saved and checked” message. Copy the private reference shown and save it in a note or file on your phone. When you return within 90 days, copy that reference from your phone, paste it into Continue saved measurements above, and press Continue measurements. Keep your reference private. Reopening your unfinished form also requires the same signed-in account.

Checking whether recent entries can be saved…

Job number · Robust office use

Robust assigns the number after payment, starting with 801. Leave this blank until then.

Order date · Robust office use

Enter the actual order date for the drawing sheets.

2Fireplace eligibility

Both conditions are required for this manufactured-fireplace ordering process.

This is a manufactured/premade fireplace originally intended for wood burning.An existing natural-gas line is present inside the firebox.

Select your Liner type and have your required measurements to proceed

EPL adds $400 to the $3,000 base price. The model determines the panel material and appearance. SSL (Sunset Liner) and FFL (FireFall Liner) are two distinct models. SPFL-Brick has only left and right side liners; the existing brick back wall remains, with no center/back liner.

View liner initials, full names, and applications ↗

8 Robust Liners to Choose From

3Fireplace configuration

For a standard fireplace, LEFT and RIGHT are viewed from the front while looking into the firebox. For an L shape, stand in front of its smaller side.

Select one configuration

Standard manufactured fireplaceLeft side + center/back + right sideTwo side panels of Robust LinersApplies to: (1) See-Through Fireplace & (2) SPFL-Brick Liner.Peninsula fireplaceOne side-wall liner.L-Shaped FireplaceOne long wall + one smaller side.Choose left or right below.

Panel measurement guide

Three-panel measurement schematic

Viewed from the front of the fireplace. Measure each named panel edge separately. The floor plan appears with the front opening measurement in section 5.

Enter the measurements in the matching boxes below. Use the floor plan in section 5 for the four floor edges and angle calculation. You can print this panel guide while measuring.

4Panel measurements

Standard panel height is up to 23″. For greater heights, the system automatically calculates the additional cost.

First use the schematic to identify every panel edge. Then enter the whole inches and select the fraction to the nearest 1/16 inch. For 18 5/16 inches, enter 18 and select 5/16. Do not add or subtract anything.

Checking saved measurements…

Does your fireplace already have a GlassDoor installed?

5Firebox opening dimensions

Full front firebox opening: Measure from the left inside edge of the firebox opening to the right inside edge, across the front. Measure twice and confirm the readings agree. Use the actual firebox edges. This width is the front side of the floor plan and is used for the corner and bend-angle calculations.

Enter the firebox width for bend-angle calculations and burner or gas-log sizing.

Full front firebox opening width — edge to edge

in.

The full front width above is the front floor edge. Together with the back floor width and both side floor depths, it determines the back corner and outward front lip angles. The front width must be greater than the back width.

View from above. The front floor edge uses the full firebox width above.

Back floor width — required for two-panel outward trim angles

in.

SPFL-Brick uses the see-through two-side-panel measurement and pricing system. The existing brick back wall remains. For outward front trims, measure the front floor width, back floor width, and both side floor depths (the bottom depths entered for the two panels). Front and back floor edges must be parallel; Robust reviews the wall and trim conditions before approval.

Burner and gas-log sizing by usable front opening
Front opening	Robust burner	Gas-log set	Robust Burner Price
Up to 30″	20″	18″	$280
More than 30″ up to 36″	26″	24″	$340
More than 36″ up to 42″	32″	30″	$400
More than 42″ up to 48″	38″	36″	$460

Other obstructions affecting fabricated Robust Liner insertions, or NONE

6Gas-pipe location

Use the drawing before entering measurements. Measure horizontally from the front edge. Both arrows end at the pipe’s far outside surface, never its center. The 4″ rule is measured from the firebox floor to the top outside surface of the gas pipe: at or below 4″, use a 1½″ bottom-open slot; above 4″, use a Ø1½″ round hole.

Example side wall viewed from the front-opening side. Enter the actual pipe wall below.

Wall or floor where the gas pipe enters

Floor to top outside of pipe

in.

Front edge to far outside of pipe

in.

If the pipe enters through the floor, wall measurements do not apply.

Optional FireGuard Retainer Glass

3/8″ clear tempered glass, up to 36″ wide, 4″ tall for fireplaces up to 20″ high, or 6″ tall above 20″, including two stands per piece: $200 per piece. Ships with your liners or separately. Final dimensions are subject to Robust review.

Would you like to add FireGuard Retainer Glass?

Review the email and press Send to notify Robust. Saving measurements alone does not submit an order. Your order is confirmed after invoice payment.

7Required safety checklist

Review every item when placing your order. Check each box only after that item has been completed and verified with a qualified professional. Any remaining items must be completed before installation of the Robust Liners. All boxes must be checked before installation begins.

Chimney and firebox are professionally cleaned.Chimney and firebox have no cracks and are confirmed safe.Chimney cap is securely in place, with no leakage.Damper opens fully and provides an unobstructed draft path.Damper handle does not obstruct placement of the Robust Liners.Gas line is secure and has no leakage.Front gas shutoff valve operates easily, is accessible, and has no leakage.Natural-gas supply to the fireplace has been confirmed.

The customer is responsible for completing all required safety checklist items and submitting the final updated checklist to Robust before installation begins. Robust will not follow up to obtain this report. Failure to submit it does not waive these requirements; installation must not proceed until they are fulfilled.

I understand that every safety checklist item is required. I acknowledge my responsibility to complete all required items, obtain verification by a qualified professional where applicable, and submit the final updated checklist to Robust before installation of the Robust Liners begins.

Additional area is charged at $2.00 per square inch. The customer is responsible for entering accurate measurements according to the instructions.

Your measurement drawings

Prepare and print drawings using the measurements currently entered above. Each side panel shows your original measurements beside the fabrication dimensions after the automatic depth deduction: 1/16″ for See-Through, SPFL-Brick, and Peninsula; ⅛″ for the standard three-panel system.