Making WWPA 105 Shiplap siding

  • Advertise with us

« back to Designing Woodworking Projects forum

Forum topic by YESServices posted 04-22-2017 01:58 PM 2060 views 0 times favorited 3 replies Add to Favorites Watch
View YESServices's profile


1 post in 1008 days

04-22-2017 01:58 PM

Topic tags/keywords: shiplap siding wwpa 105 dutch german cove router router bit

Any ideas on how to make WWPA 105 shiplap siding? I’m new to woodworking…I thought I could make it use a router, so I went and purchased a router and router table, but now I’m not so sure. Can this be done with a router, and, if so, what bit(s) should I buy? If not, what tool should I buy?

3 replies so far

View bondogaposis's profile (online now)


5605 posts in 2959 days

#1 posted 04-22-2017 02:48 PM

How many lineal feet do you intend to run? A shaper would be a better tool if you are going to be making large quantities of siding. A router could be used with a panel rising bit, then cutting the rabbet on the table saw with a dado will be faster than using a router. Here is the type of bit you’d need. You will want to slow your router way down when using large bits like that.

-- Bondo Gaposis

View Rich's profile


5147 posts in 1198 days

#2 posted 04-22-2017 03:09 PM

I use this bit to raise panels for interior/exterior doors. The radius of the cove is 1-1/2”, slightly greater than the 1-1/8” that the WWPA standards call for.

Keep in mind that this is a 3-1/2” diameter bit. Be sure your router table can accommodate it. Like Bondo said, you need to slow your router all the way down for a bit that big. You might need to make your cuts in multiple passes, depending on the horsepower of your router. A feather board mounted to the fence will help keep the wood flat against the table top.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

View Woodknack's profile


13019 posts in 2988 days

#3 posted 04-23-2017 01:02 AM

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics