
There are several ways to cut a lead pan liner, depending on the thickness of the liner. For instance, a bandsaw, a circular saw, or a chainsaw can be used to cut large plates or chunks of lead. If the lead is soft, one can also use a sharp blade or an axe head attached to a hydraulic wood splitter. Additionally, a cold chisel, a propane torch, or a garden limb shear can also be used. It is important to note that the blade of the saw must be coarse to cut through the lead effectively.
Characteristics and Values of Cutting a Lead Pan Liner
| Characteristics | Values |
|---|---|
| Tools | Bandsaw, circular saw, chainsaw, axe, chisel, handsaw, maul, propane torch, electric saw, garden limb shear, battery-operated reciprocating saw, pocket cable saw, scissor-type PVC pipe cutter, wood-cutting blade, roofing hook blade |
| Techniques | Pecking method, using a hot piece of sheet metal, melting, slicing |
| Considerations | Thickness of the material, relative coarseness of the blade, blade speed, blade lubrication, user's arm strength, safety precautions |
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What You'll Learn

Measure the length of the curb and cut the liner to size
To install a lead pan liner, you must first measure the length of the curb and cut the liner to size. This is a crucial step to ensure a proper fit and requires careful attention to detail. Here is a step-by-step guide to help you through the process:
Start by measuring the length of the curb accurately. Use a tape measure or a ruler to get the exact length, ensuring that you measure from one end of the curb to the other. Take note of any irregularities or curves along the curb that may impact the fit of the liner.
Once you have the measurement, you can cut the lead pan liner to size. It is important to use the right tools for this step to ensure a straight and precise cut. Mark the measured length on the liner with a pencil or marker, following the curb's contour if there are any bends or curves.
Choose the appropriate cutting tool for the job. While lead is a soft metal, it can still be challenging to cut and may require some muscle power. Some suitable tools for this task include a sharp knife, a handsaw with a fine-toothed blade, or a pair of heavy-duty scissors.
When cutting the lead pan liner, it is essential to work slowly and carefully. Follow the marked line as closely as possible to ensure a straight cut. If using a knife or a saw, apply firm and steady pressure, and remember to take your time to avoid any uneven cuts or mistakes.
After cutting the lead pan liner to size, it is a good idea to test the fit. Place the liner against the curb and ensure that it aligns properly. Make any necessary adjustments if there are minor discrepancies, but be cautious not to oversize the liner.
By carefully measuring the curb and cutting the lead pan liner to the appropriate size, you can ensure a precise fit and improve the overall installation process. Remember to take your time, use the right tools, and always prioritize safety when working with cutting tools.
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Staple the liner over the curb
Once you have measured and cut the pan liner to fit the curb, you can staple it over the curb. Start by stapling the liner to the outside of the curb. Use a staple gun or a hammer and nails to secure the liner.
Next, cut two pieces of scrap liner to fit the width of the curb with a height of around 6 inches. Adhere these pieces to the top of the curb, where the curb meets the wall framing. Each piece should be half on the curb and half on the wall framing. You can use Oateyweld adhesive for CPE liners or X-15 adhesive for PVC liners.
Now, cut the liner vertically at the inside corner and adhere it horizontally over the top of the scrap liner. Staple the liner to the wall framing and cut away any excess that hangs outside the shower dimensions.
Finally, adhere the excess pan liner for the mortar bed over the curb and staple the outside of the curb once again.
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Cut X shapes over the bolts
When installing a shower pan liner, it is important to cut X shapes over the bolts that the clamping ring screws into. This is a crucial step to ensure a snug fit for the liner. Here is a detailed guide on how to cut X shapes over the bolts:
First, remove the test plug from the drain and carefully drape the pan liner over both the mortar bed and the drain base. Ensure that the wall-facing edges are folded correctly according to the length of the application height. It is important to make sure the pan liner is centered before proceeding.
Next, cut X shapes over the bolts. Use a sharp utility knife or a suitable cutting tool to carefully cut out four X shapes, positioning them precisely over the bolts. This step requires accuracy to ensure the X shapes align perfectly with the bolts. Take your time and make any necessary adjustments if needed.
After cutting the X shapes, proceed to cut out a hole over the drain hole. This will allow the drain to function properly once the liner is installed. Now, fold the pan liner halfway over to expose the drain base. Apply a generous amount of silicone caulk around the surface of the inner flange. This step helps create a watertight seal.
Finally, fold the liner back over, carefully pushing the bolts through the X shapes. Securely screw the clamping ring down over the bolts and tighten them until the ring is snug against the liner. Put the test plug back into place to complete the installation. Remember to only add staples to the top half-inch of the liner for maximum waterproof protection.
By following these steps and paying attention to detail, you can successfully cut X shapes over the bolts when installing a shower pan liner, ensuring a secure and watertight fit.
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Cut a hole over the drain hole
To cut a hole over the drain hole of a lead pan liner, you will first need to prepare the slope. You can do this by pouring mortar onto the subfloor at 1/4 inch per foot, sloping inward from the wall framing to the top of the drain base. After this, leave the mortar bed to cure according to the mortar instructions. Alternatively, you can use Oatey's Perfect Slope, which you can install by simply trimming it to your shower dimensions, as well as around the drain for a flush fit.
Once the slope has been prepared, you can start installing the drain base. Place your drain base into a pre-made hole (a 4-1/2 inch hole is recommended for Oatey tile shower drains) and screw the flange to the subfloor. If your drain is pre-assembled, loosen the bolts connecting the clamping ring to the flange and remove the clamping ring, but leave the drain plug in place in the middle of the drain.
Now, you can start cutting the hole in the lead pan liner. First, remove the test plug from the drain and drape the pan liner over both the mortar bed and the drain base, ensuring that the wall-facing edges are folded according to the length of the application height. Make sure the pan liner is centered before locating the drain plug. Cut an X shape over the drain plug, then fold the pan liner halfway over to expose the drain base. Apply silicone caulk around the surface of the inner flange, then fold the liner back over and screw the clamping ring down over the bolts. Finally, tighten the bolts until the ring has a snug fit against the liner.
You can also use a drain pan hole cutting kit to cut a hole in the lead pan liner. These kits typically come with a metal drill bit and a PVC fitting, which you can use with a power drill to convert any drip pan into a drain pan.
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Fold the liner and apply silicone caulk
To install a shower pan liner, you must first prepare the slope using either mortar or Oatey's Perfect Slope. If you are using mortar, pour it onto the subfloor at 1/4 inch per foot, sloping inward from the wall framing to the top of the drain base. If you opt for Oatey's Perfect Slope, simply trim it to your shower dimensions and place it flat with the printed side facing upwards.
Once the slope is in place, you can prepare the drain base. Start by cutting a hole in the centre of the shower floor for the drain assembly. It is recommended to begin with a small hole, as you can always cut away more material later if needed. Place the drain base in the opening, ensuring that the liner does not interfere with the drain's weep holes.
Now, it's time to fold the liner and apply silicone caulk. First, spread the liner material from the drain body outward, toward the side framing and the curb, ensuring it lays flat on the floor. Then, fold the corners and secure the liner to the framing using nails or staples. Work your way around the perimeter of the liner, fastening it into the framing.
Next, apply adhesive silicone caulk to both sides of the liner where it contacts the drain. This will help create a watertight seal. If you are using a plastic plumbing drain, you may need to route a channel to ensure the top of the drain flange is flush with the subfloor.
Finally, screw the clamping ring down and tighten the bolts until it has a snug fit against the liner. You can then put the test plug back into place.
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Frequently asked questions
To cut a lead pan liner to fit your shower dimensions, you must first measure the length of the curb. Cut a piece of the liner to those measurements. Staple this piece of liner over the top and to both exposed sides of the curb.
Remove the test plug from the drain and drape the pan liner over the mortar bed and drain base. Cut X shapes over the four bolts that the clamping ring screws into and cut out a hole over the drain hole.
You can use a sharp utility knife to cut the lead pan liner.
Mark the lead pan liner with your desired measurements. Place a straightedge along the markings and use it as a guide for your utility knife.











































