Build a Board-and-Batten Interior Accent Wall

A. Finished-Project Specification

Quantity: one complete board-and-batten trim system on one approved wall, consisting of the bottom, intermediate, and top rails specified in the wall elevation and the full set of vertical battens at the calculated spacing.

B. Document Schedule

Document	Quantity	Source	Content	Preparation / Purpose
Wall Layout Record	1 per wall	Field-recorded	Wall identity, controlling documents, dimensions, dates, installer name	Header record for the installation
Interruption Survey	1 per wall	Field-recorded	Location and height of every door, window, switch, receptacle, vent, and other interruption	Confirms the layout accounts for every device and opening
Batten Spacing Calculation	1 per wall	Field-recorded	Batten count, field width, edge condition, centerline verification	Confirms the layout is symmetrical before cutting begins
Rail and Batten Cut List	1 per wall	Field-recorded	Piece lengths, quantities, and labeled locations for every rail and batten	Controls cutting and prevents mismatched pieces
Framing and Backing Map	1 per wall	Field-recorded	Stud, blocking, or approved anchor locations along rail and batten lines	Prevents blind fastening near concealed services
Installation Inspection Record	1 per wall	Field-recorded	Level, plumb, symmetry, spacing, and surface-plane results	Confirms the completed wall meets acceptance standards

C. Material and Fastener Schedule

• Rail stock: per the approved rail profile, length, and quantity from the wall elevation and cut list.
• Batten stock: per the approved batten profile, width, thickness, and quantity from the calculated spacing and cut list.
• Fasteners: per the approved fastener and hardware schedule for rail-to-framing, batten-to-rail, and batten-to-wall joints, including diameter or gauge, length, and installation direction.
• Adhesive: applied only where the approved design specifies it, per the manufacturer's instructions for the batten and wall materials involved.
• No fill, caulk, or finish material: this project ends at fastened, inspected trim; filling, caulking, and finish preparation occur in Project 18.

D. Acceptance Standards

Check	Standard
Rail level	Each rail level within 1/8 in. across its full length, verified with a laser or bubble level
Batten plumb	Each batten plumb within 1/8 in. over its full height, verified with a level
Batten spacing consistency	Field widths consistent with the calculated spacing within the tolerance stated in the wall elevation, with no visible drift across the wall
Centerline symmetry	Layout visually balanced about the verified wall centerline per the approved design condition
Device and opening reveals	Consistent reveal maintained around every switch, receptacle, window, door, and cabinet edge per the wall elevation
Fastening security	Every rail and batten fastened into framing or approved backing with no split edges or missed backing locations
Surface plane	Rail-to-batten and batten-to-batten intersections flush within the tolerance stated in the wall elevation, verified with a straightedge

E. Document Review and Wall Preparation

1. Review the wall elevation, batten profile, rail profile, panel or wall backing, finish type, outlet locations, and design dimensions. Confirm the documents correspond to the wall being trimmed and match the Project 01 controlling-line layout for that wall.
2. Inspect the wall for plane variation, damage, moisture, and unsuitable coatings. Stop work and refer any active hazard or unresolved defect for correction before proceeding.

F. Wall Survey and Interruption Record

1. Measure total wall width and height. Record both dimensions on the Wall Layout Record.
2. Record doors, windows, switches, receptacles, vents, and other interruptions. Measure and record the exact horizontal and vertical location of each on the Interruption Survey.
3. Determine the approved number and spacing of battens. Use the batten count specified in the wall elevation, or the approved calculation method if the count is design-derived.
4. Calculate equal field widths and edge conditions. Divide the field between wall edges, corners, or terminations into equal widths per the approved design condition.
5. Mark centerlines and verify visual symmetry. Mark the wall centerline first, then verify the calculated batten layout is balanced about it before marking individual locations.

G. Rail Layout and Installation

1. Establish level lines for bottom, intermediate, and top rails. Use the finished-floor reference from Project 01 and the heights specified in the wall elevation.
2. Locate framing or identify the approved adhesive-and-fastener method. Mark stud, blocking, or approved anchor locations on the Framing and Backing Map.
3. Cut and dry-fit horizontal rails. Cut each rail to the length recorded on the Rail and Batten Cut List and dry-fit it to the marked level line.
4. Install rails level and aligned. Fasten each rail into framing or approved backing per the fastener schedule, checking level across the full length before setting all fasteners.

H. Batten Layout and Installation

1. Measure each vertical batten individually between rails or terminations. Do not assume a single uniform batten length; verify each location independently.
2. Cut battens square and label locations. Label each cut batten with its wall position matching the Rail and Batten Cut List.
3. Dry-fit battens and verify spacing. Position all battens at their calculated locations without fastening and confirm field widths and symmetry across the full wall.
4. Install battens plumb. Fasten each batten into the rails and approved backing per the fastener schedule, checking plumb before setting all fasteners.
5. Maintain consistent reveals around outlets and openings. Adjust batten position within the approved tolerance where required to preserve a consistent reveal at each device or opening.
6. Add approved box extensions or device coordination through the electrical trade where required. Do not extend or modify a box or device directly; refer this work to the electrical trade.

I. Fastening and Final Inspection

1. Fasten trim without splitting edges or missing backing. Confirm every fastener lands in framing or approved backing per the Framing and Backing Map.
2. Inspect symmetry, spacing, level, plumb, intersections, and surface plane. Record results on the Installation Inspection Record against the Acceptance Standards table.
3. Correct visible spacing drift and joint misalignment. Reset and refasten any rail or batten that fails the recorded standard.
4. Prepare the wall for Chapter 18. Confirm all fasteners are set and the wall is ready for fill, caulk, and paint-readiness preparation.