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Buffalo Lumber Company, Inc., Lumber - Retail, Woodbury, TN

A+  BBB Rating

Channel Rustic Lap Siding

Unit of Channel Rustic Lap Siding WRC Channel Lap Siding Pattern milled PROFILE
CHANNEL RUSTIC lap siding pattern - Just Milled WRC Channel Rustic Lap Stained & INSTALLED

Channel Rustic Siding has 1/2” overlap and a 1” to 1 1/4” reveal that when installed creates a channel effect between siding boards. Channel Lap is often chosen for its rustic rough-hewn, textured appearance.

Channel siding installs with a minimal amount of effort and material wastage. The Channel pattern is traditionally installed horizontally with the edge of one board having a recessed area along its rear which receives the shaped top-rear edge of the board next to or below it, so as to exclude water during rainfall.

Channel Lap Siding is normally supplied in partially seasoned (PAD) knotty grades with a rough saw textured face. Commonly available sizes are 1x6", 1 x 8" and 1 x 10". Clear grades are milled and priced to order.

1x10 Channel Rustic Siding Customer Select Grade installed on home in Indiana

1x10 Channel Rustic Customer Select Siding - IN

1x8 Channel Rustic Siding STK Grade installed on home in Kentucky

1x8 Channel Rustic Customer Select Siding - KY

Lately we are seeing more channel lap vertical applications. This is a variant on the new "Shadaw Gap" narrow 1/4" shadow line profile that is popular now.

If you choose to install channel siding vertically be sure to bevel cut the ends and install so water is directed to the outside.

Western Red Cedar Channel Lap Siding vertically installed factory painted Barn Red New Jersey

Channel vertical install PRE-Painted "Barn Red" NJ

WRC Channel Rustic Cedar Siding vertical install

Channel vertical install PRE-Stained "Pecan" MO

The Channel Rustic pattern provides excellent weather protection and allows for maximum dimensional wood change (breathing) in climates of highly variable moisture levels between seasons - without adversely affecting the appearance of your channel lap siding.

Installers usually leave an 1/8” air gap between boards to allow the wood to expand and contract with the seasonal humidity.

Western Red Cedar 1x8 Channel Rustic Lap pattern factory finished PECAN Semi-Trans Stain
WRC 1x8 Channel Rustic Vertical Install - PRE-finished "Pecan" Semi-Trans stain - St. Louis MO

Channel Rustic Pattern Profile

There is only one standard Channel Rustic Lap pattern profile.

Channel Rustic Lap Pattern Profile - 1/2 overlap 1 inche curved reveal

The overlap between boards (E) is usually 1/2" leaving approximately a 1" square channel (F) revealed between. The overlap and channel width can be custom modified - sometimes ;-)

Channel Lap Siding TRUE Measure

You might be wondering why our Buffalo diagram above has letters - A, B, C - instead of actual measurements. That is because siding measurements can vary from mill to mill and lumber yard to lumber yard. Using letters allows us to confirm the TRUE dimensions with the mill before we sell to our customers.

NOMINAL SIZES are for industry identification only. Even though a pattern is called 1x6" or 1x8" that does not mean it measures 1 inch thick nor 6 or 8 inches wide. Nominal 1x6, 1x8 refers to the size before the pattern profile is milled and NOT the board's final finished or "dressed" dimensions.

CHANNEL LAP siding pattern - milled SMOOTH FACE WRC Channel Lap Siding - milled SMOOTH Face
WRC 1x8 Channel Lap - Rough Face Factory Stained WRC 1x8 Channel Lap - Rough Face Factory Stained

A 1" NOMINAL is usually 11/16ths inch thick. A 6" NOMINAL channel lap pattern is usually 5 3/8 - 5 1/2" wide including the overlap which results in 4 7/8 - 5 1/8 inches of exposed face depending on lap depth. An 8" NOMINAL channel rustic lap pattern is usually 7 1/8 - 7 1/4" wide including the overlap which results in 6 5/8 - 6 7/8 inches of exposed face depending on the lap depth.

This is called the pattern's "exposure" - the visible part of the board when installed on your wall. Read our Channel Lap SQFT to LFT Coverage and "Buyer Beware" warning   to make sure you ask the right questions BEFORE you BUY.

CUSTOM MILLED 1x6 Channel Pattern Profile with 3/8 inch Shadow Gap between boards  - NEAR CLEAR GRADE - Missouri
CUSTOM MILLED 1x6 Channel Siding with 3/8" Shadow Gap between boards - NEAR CLEAR GRADE - Missouri

In the last few years a custom milled pattern has gained interest. The home in Missouri above built in 2011 was the first time we milled this pattern.

Sometimes called Shadow Gap, Shadow Line, Shadow Profile and Small Reveal this is combination of the standard Shiplap Siding "Flush Joint" and the Channel Lap patterns. The normal 1" Channel reveal is reduced to a fine narrow gap usually only 3/8 inch. When installed a "shadow line" effect is created.

CUSTOM MILLED 1x6 Channel Pattern Profile with 1/4 inch Shadow Gap between boards  - CLEAR VG CEDAR - New York
CUSTOM MILLED 1x6 Channel Siding with 1/4" Shadow Gap between boards - CLEAR VG GRADE - New York

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Channel Lap siding is often sold by the linear (or lineal) foot. To figure out how many linear feet (LFT) you need you must multiply the square foot area you plan to COVER by a linear factor based on the pattern width you have selected 6", 8", or 10". The Lineal Foot Factor is derived by dividing 12 inches by the individual pattern's "exposed" face - the width that is still visible after the siding boards are installed.

A) Calculate the square footage in walls: length x height = sq. ft.
B) Calculate, and then subtract, the square footage of openings
C) Add 10% to cover trim and waste = SQFT needed
D) Multiply SQFT result by the linear factor = LFT needed

BUYER BEWARE WARNING: The actual "dressed" widths and "Exposed Face" measurements below are suggested based on our experience in the industry. HOWEVER individual mills often have their own pattern standards which vary from the norm. When you get ready to buy be sure to ASK for the exposed width to make sure you are buying enough to complete the job!

CHANNEL RUSTIC LAP Siding Coverage Factors*

Nominal WidthDressed WidthExposed FaceLinear Ft Factor
8" 7 1/8" 6 5/8" 1.81
10" 9 1/8" 8 5/8" 1.39

* assuming 1/2" board overlap

Example of 1x8" Pattern Coverage estimation: If you are siding four walls 8 feet high by 40 feet long with 8" wide CHANNEL LAP boards and you allow 10% of the total square feet for openings, you would need approximately 2300-2350 linear feet:

SQFT AREA: 4 * 8 * 40 = 1280 SQ FT - 128 (10% openings) + 115 (10% trim/waste) = 1267 SQ FT

8" Channel Rustic Pattern: 1267 SQ FT * 1.81 linear factor = 2293.3 LFT

Unit of Channel Rustic Lap Siding WRC Channel Lap Siding unit - DELIVERED
Channel Rustic Siding wall profile close-up Channel Siding wall closeup - INSTALLED

Help Us Answer Your Questions

Because we are committed to answering every request, our phones ring off the hook. In order to make sure you get the attention you deserve, we ask that you help us help you.

When you call our toll free line you will be asked a few questions to confirm if we can truly help with your project. If it looks like we can we will set up project consultation with a sales expert.

This a 15 minute free consultation. If our products and services are a good project match, we will also give you a verbal "ball park" price and total cost estimate to help you plan your project costs.

1x10 Channel Rustic Customer Red Cedar - Customer Select Grade PRE-finished - Farm in Illinois
1x10" Channel Rustic Customer Red Cedar - Customer Select Grade PRE-finished - Farm in Illinois

BEFORE we can give you a Ball Park Price we will need to know the approximate square feet required and the Ship to location (city, state, zip). This information is used to make sure everyone who makes an appointment receives the advice and customer service we have promised. Your information will not be shared or sold.

CONTACT Buffalo Lumber

ABOUT Buffalo Lumber

Western Red Cedar 1x10 Channel Rustic Lap pattern factory finished Cedar Natural Semi-Trans Stain
WRC 1x10" Channel Rustic Customer Select Grade PRE-finished "Cedar Natural" Semi-Trans stain - Indiana


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Pattern Glossary

  BEV   Beveled
  BEV   SDG Beveled siding
  BS   Both sides
  CB   Center Beaded
  CB1S   Center bead one side
  CB2S   Center bead two sides
  CG   Center groove
  CG2E   Center groove two edges
  CLG   Ceiling
  CM   Center matched
  CS   Caulking seam
  CSG   Casing
  CV   Center Vee
  CV1S   Center vee one side
  CV2S   Center vee two sides
  D2S   Dressed two sides
  D4S   Dressed four sides
  DB   CLG Double-beaded ceiling
  DB   PART Double-beaded partition
  DBL   T&G Double tongued & grooved
  D&CM   Dressed & center matched
  DKG   Decking
  D/S,DS   Drop Siding
  D   S/L Double shiplap
  DVJM   Double vee-jointed matching
  D&M   Dressed and matched
  E   Edge
  EB1S   Edge bead one side
  EB2S   Edge bead two sides
  E&CB2S   Edge & center bead two sides
  EV1S   Edge vee one side
  EV2S   Edge vee two sides
  E&CV1S   Edge & center vee one side
  E&CV2S   Edge & center vee two sides
  EE   Eased Edges
  EG   Edge (vertical) grain
  EM   End matched
  EV   Edge vee
  FE   Feathered edge
  FG   Flat (slash) grain
  FLG   Flooring
  F&G   Feathered & grooved
  G1E   Grooved one edge
  HB   Hollow back
  MG   Mixed Grain
  N   Nosed
  N1E   Nosed one edge
  N2E   Nosed two edges
  OS   One side
  PAT   Pattern
  P1E   Planed one edge
  P2E   Planed two edges
  P1S   Planed one side
  P2S   Planed two sides
  P4S   Planed four sides
  P1S1E   Planed one side one edge
  P2S1E   Planed two sides one edge
  P1S2E   Planed one side two edges
  PAR   Planed all 'round
  PART   Partition
  PE   Planed edge
  PPE   Planed plain edge
  PSE   Planed square edge
  PSJ   Planed and square jointed
  PTG   Planed tongued and grooved
  R&B   Rabbet & bead
  R/F   Resawn/Rough Face
  Rabbeted   Bevel siding with rabbet (notched cut) on bottom edge
  S   Side, Surfaced
  SB1S   Single bead one side
  SDG   Siding
  SG   Slash (flat) grain
  S/L,   or SL Shiplap
  SQ   Square
  STPG   Stepping
  S&E   Side & edge (surfaced on)
  S1E   Surfaced one edge
  S2E   Surfaced two edges
  S1S   Surfaced one side
  S2S   Surfaced two sides
  S4S   Surfaced four sides
  S1S&CM   Surfaced one side & center matched
  S2S&CM   Surfaced two sides & center matched
  S4S&CS   Surfaced four sides & caulking seam
  S1S1E   Surfaced one side one edge
  S1S2E   Surfaced one side two edges
  S2S1E   Surfaced two sides one edge
  S4SEE   Surfaced four sides eased edges
  T&G   Tongued and grooved
  TG&B   Tongued, grooved, and beaded
  TG&V   Tongued, grooved, and vee-jointed
  T1E   Tongued one edge
  UE   Unedged
  V2E   Beveled V on two Edges
  V4E   Beveled V on four Edges
  VG   Vertical grain
  VJM   Vee-joint matching

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