Vitex Decking 140x19mm Smooth – Premium Hardwood Decking

Direct from the Mill

At Lumber Deal, we connect directly with high-quality timber and plywood products locally sourced from leading manufacturers in NZ — at prices designed to move fast.

By purchasing surplus runs, overstock, and factory-direct shipments, we pass the savings straight to you without compromising on quality.

The Catch? Quantities can be limited, so when you see the right material for your project, it pays to act quickly.

We cater to builders, joiners, fabricators, and savvy DIYers who want top-grade materials without the top-grade price tag.

With prompt dispatch and straightforward service, we make it easy to secure great timber and plywood — while the deal lasts.
Knotty Pine TGV 80x9mm cover tongue

Knotty Pine TGV 80x9mm cover tongue

$3.80
Knotty grade pine 80x9mm cover tongue and groove panelling Perfect for interior wall and ceiling lining 100lm packs available  Untreated knotty pine.  price is per 100lm pack Interior panelling fo...

Natural Feature Grade

Features rich grain patterns and natural knots

Pre Order - Cheapest Interior Lining

Made to order and Ready within 10 Business days

Natural Appeal

Create a warm, rustic finish ideal for modern and classic interiors

Easy Tongue & Groove Installation

Tongue-and-groove profiling allows boards to interlock seamlessly

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Vitex Decking 140x19mm Smooth – Premium Hardwood Decking

Vitex Decking 140x19mm Smooth – Premium Hardwood Decking

$17.40
Vitex Decking 140x19mm Smooth – Premium Hardwood Decking Upgrade your outdoor space with premium Vitex hardwood decking, a naturally durable and stable timber ideal for New Zealand conditions.    ...

Premium Vitex hardwood

Smooth dressed finish for a modern look

Resistance

Durable and naturally resistant to decay

Stability

Stable timber suited to NZ outdoor conditions

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Clearance Sale On Now

Limited time offers on selected items

19x19mm American White Oak Bundle
-17%

19x19mm American White Oak Bundle

$111.78 $134.74 Save $22.96
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Vitex Decking 140x19mm Smooth – Premium Hardwood Decking
-4%

Vitex Decking 140x19mm Smooth – Premium Hardwood Decking

$17.40 $18.21 Save $0.81
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Walnut Pre-Blanked 127x30
-7%

Walnut Pre-Blanked 127x30

$248.00 $268.27 Save $20.27
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Western Red Cedar Pre-Stained TGV Panelling - 117x12mm - 4mm Negative detail - Special Price
-24%

Western Red Cedar Pre-Stained TGV Panelling - 117x12mm - 4mm Negative detail - Special Price

$744.21 $989.79 Save $245.58
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Western Red Cedar Pre-Stained TGV Panelling - 90×12mm - 4mm Negative detail - Special Price
-24%

Western Red Cedar Pre-Stained TGV Panelling - 90×12mm - 4mm Negative detail - Special Price

$609.82 $811.06 Save $201.24
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Western Red Cedar Pre-Stained TGV Panelling - 70×12mm - 4mm Negative detail - Special Price
-24%

Western Red Cedar Pre-Stained TGV Panelling - 70×12mm - 4mm Negative detail - Special Price

$933.07 $1,240.99 Save $307.92
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Timber Products

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Dunnage - Timber Packing (per meter) bulk discounts available

$2.10 NZD
$2.10 NZD $2.10 NZD/m

Pine UT D4S 30x20mm

$2.30 NZD
$2.30 NZD $2.30 NZD/m

Knotty Pine TGV 80x9mm cover tongue

$3.80 NZD
$3.80 NZD $3.80 NZD/m

Toasted Pine Decking

$23.04 NZD
$23.04 NZD $23.04 NZD/m

Renowned Skirting Sample

$5.00 NZD
$5.00 NZD
Sale

TMT Toasted Oak TGV Panelling 135x12mm cover

$5.00 NZD
$5.00 NZD

Thermally Modified Kwila 140x19mm Decking

$8,132.80 NZD
$8,132.80 NZD $40.66 NZD/m
Sale

Vitex Decking 90x19

$5,330.25 NZD $4,887.50 NZD
$4,887.50 NZD $5,330.25 NZD $9.78 NZD/m
Sale

American Oak Skirting

$2,200.00 NZD $2,014.00 NZD
$2,014.00 NZD $2,200.00 NZD $45.98 NZD/m

Plywood Products

Sale

ACM Wetwall Black White Gloss - 4.5mm Aluminium Composite

$117.00 NZD $102.35 NZD
$102.35 NZD $117.00 NZD $41.95 NZD/m²

Premium Finland Birch Sheet – 1.5mm

$27.00 NZD
$27.00 NZD

Prestige Oak PVC F2S 18mm MDF Panel

$103.50 NZD
$103.50 NZD $42.42 NZD/m²

American White Oak 3050x1220mm Crown cut Mismatched 1F1B

$334.00 NZD
$334.00 NZD $89.78 NZD/m²

Timber Interior Linings Collection

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Sold out

Western Red Cedar Pre-Stained TGV Panelling - 117x12mm - 4mm Negative detail - Special Price

$989.79 NZD $744.21 NZD
$744.21 NZD $989.79 NZD $15.06 NZD/m
Sold out

Western Red Cedar Pre-Stained TGV Panelling - 90×12mm - 4mm Negative detail - Special Price

$811.06 NZD $609.82 NZD
$609.82 NZD $811.06 NZD $11.29 NZD/m
Sold out

Western Red Cedar Pre-Stained TGV Panelling - 70×12mm - 4mm Negative detail - Special Price

$1,240.99 NZD $933.07 NZD
$933.07 NZD $1,240.99 NZD $8.79 NZD/m
Sale

TMT Toasted Oak TGV Panelling 135x12mm cover

$5.00 NZD
$5.00 NZD
Sold out

Western Red Cedar Pre-Stained TGV Panelling - 138×12mm - 4mm Negative detail - Special Price

$1,686.91 NZD $1,124.60 NZD
$1,124.60 NZD $1,686.91 NZD $17.57 NZD/m

FluteScape by LD Interior Fluted Timber Panel

$189.00 NZD
$189.00 NZD $35.00 NZD/m

Interior Lining Auckland Cityscape Feature Wall Batten

$228.22 NZD
$228.22 NZD

Interior Lining Wanaka Ridge Feature Wall Batten

$228.22 NZD
$228.22 NZD

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Decking

Decking

Decking Calculator

Convert square meters to linear meters for your decking project

How it works: Enter your required square meters and select your decking board size. The calculator converts square meters to linear meters based on the board width. 140mm boards cover 0.14m² per linear meter, while 90mm boards cover 0.09m² per linear meter.

Timber Flooring Calculator & Installation Guide

Room Measurements

Board Specifications

Calculation Results

Total Area: -
Board Width: -
Base Lineal Meters: -
Waste Allowance: -
Total Lineal Meters Required: -

Timber Flooring Installation Guide - New Zealand Standards

Important: This guide follows New Zealand Building Code requirements. Always check with your local council for specific requirements and consider hiring a licensed professional for structural work.

Pre-Installation Preparation

  • Moisture Testing: Subfloor moisture content must be below 18% (NZS 3602)
  • Acclimatisation: Store timber in installation environment for 7-14 days
  • Subfloor Preparation: Ensure level within 3mm over 3m span
  • Ventilation: Minimum 150mm clearance under suspended floors
  • Vapour Barrier: Install where required by NZ Building Code

Installation Process

  • Direction: Install perpendicular to floor joists for maximum strength
  • Starting Point: Begin from longest, straightest wall
  • Expansion Gaps: Leave 10-15mm around perimeter for seasonal movement
  • Staggering: Stagger end joints by minimum 300mm
  • Fixing: Use appropriate fasteners every 300-400mm along joists
  • Secret Nailing: Nail at 45° angle through tongue for invisible fixing

NZ Building Code Compliance

  • Structural Requirements: Follow NZS 3604 for timber framing
  • Fire Safety: Ensure compliance with NZBC Clause C (if applicable)
  • Moisture Management: Follow NZBC Clause E2 requirements
  • Thermal Performance: Consider insulation requirements under NZBC Clause H1
Professional Tip: In New Zealand's variable climate, always allow for seasonal timber movement. Coastal areas may require additional moisture protection measures.

Finishing Your Timber Floor

Sanding Preparation

  • Initial Sanding: Start with 80-100 grit, progress to 120 grit
  • Dust Removal: Vacuum thoroughly between each grit change
  • Final Sand: Finish with 150 grit for smooth surface
  • Tack Cloth: Remove all dust before applying finish

Staining Process

  • Test First: Always test stain on off-cut or inconspicuous area
  • Even Application: Work with the grain using lint-free cloth
  • Drying Time: Allow 6-8 hours between coats in NZ climate
  • Light Sanding: Lightly sand with 220 grit between stain coats

Protective Coating Options

  • Polyurethane: Excellent durability, 2-3 coats recommended
  • Oil-based Finish: Natural look, requires regular maintenance
  • Water-based Finish: Low odour, quick drying, clear finish
  • Wax: Traditional finish, requires frequent reapplication

Application Best Practices

  • Temperature: Apply between 15-25°C with low humidity
  • Ventilation: Ensure adequate airflow during application
  • Brush Quality: Use high-quality natural bristle brushes
  • Thin Coats: Apply multiple thin coats rather than thick ones
  • Curing Time: Allow 7-14 days for full cure before heavy use
Safety Note: Always ensure adequate ventilation when using solvent-based products. Follow manufacturer's safety guidelines and consider environmental impact.

Maintenance Schedule

  • Daily: Sweep or vacuum to remove grit and debris
  • Weekly: Damp mop with appropriate floor cleaner
  • Annually: Deep clean and assess for wear patterns
  • 3-5 Years: Consider recoating high-traffic areas
  • 10-15 Years: Full sand and refinish as needed
NZ Climate Tip: In humid coastal areas, monitor for cupping or gaps. Maintain consistent indoor humidity levels (45-65%) year-round for optimal floor performance.