Parts, Tools & Supplies Needed
- Marine cup holder with drain nipple (1/4″ OD)
- Flexible drain hose 1/4″ ID
- Hose clamp 1/4″ – 3/4″
- Drill
- 4 1/8″ hole saw and arbor
- 3/8″ drill bit
- 1/8″ drill bit
- Rasp or half round file
- Masking tape
- Silicone caulk
- Compass
- Combination square
- Pencil
- Clean water
- Instructions
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- Clean area where cupholder will be installed
- Cover area with masking tape.
- Pull the inside panel off the doors by pulling gently.
- Using the compass, scribe a center line along the top of the barn door panel.
- Using combination square, mark the center point of your cupholder. (Using combination square allows you to make sure both cup holders are set in the same distance from the door edge.)

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- Drill 4 1/8″ hole where your two lines cross.
- Dry fit cupholder. If it doesn’t fit properly, enlarge the hole with the rasp or file.

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- Drill 3/8″ hole through underside of barn door.
- Pull the drain hose up from the driveway through both holes & to the top of the door

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- Holding 1/8″ drill bit in your fingers, DO NOT USE DRILL, ream drain nipple.
- Secure drain hose to cupholder with hose clamp.
- Remove the masking tape.
- Apply a bead of silicone to the underside of the top lip on the cup holder.
- Wet your finger with water to smooth out the filet of caulk that squeezes out when you press the cup holder down.
- Pull most of the excess drain hose out of the bottom of the door.

- Cut the hose just below the bottom of the door.
- Seal this hole with silicone.
- Re-install inside barn door panel.
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