Meet the X-Large 3mm Baltic Birch plywood sheet from Laser Wood Supplies—a robust, two-sided veneer core panel built for serious makers who run big projects or high-volume batches. At 20" x 30" and 3mm thick, this sheet delivers the space you need without constant panel joins, making it ideal for large signs, display panels, and multi-piece designs on your Mira9/Thunder/OMTech setups.
Why this sheet stands out
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Large format for fewer seams: 20" x 30" sheets maximize yield on big projects, reducing the need to piece together smaller panels and speeding up production.
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Premium Baltic Birch, double-sided: veneer-core construction on both faces provides a bright, tight-grain surface that accepts engraving, staining, painting, and finishing with clean edges.
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Quality grade and consistency: B/BB grade offers reliable density and clean surfaces, making it a dependable choice for precise laser cutting and CNC routing.
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Flatness with real-world limits: boards are cut by hand to the listed size, with only very slight variations. While the bigger the piece, the more warp you may encounter with 1/8" Baltic Birch—that’s a natural trait, not a defect—and we select the flattest boards we can for you.
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Ready for dual-sided work: the two-sided veneer core makes it a versatile base for projects needing finishes or engravings on both sides without compromising surface quality.
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Proven compatibility with popular lasers: widely used with Glowforge Hobby lasers, as well as Mira9/Thunder/OMTech and other common laser and CNC machines. Our starting settings align with proof-grade practices to help you dial in quickly.
Starting laser settings and practical notes: Treat Baltic Birch as a solid baseline akin to Med Basswood ply. For Mira9 (90W) users, begin at approximately 45 mm/s with about 70% power and Auto Focus enabled, then fine-tune to your specific machine, enclosure, and material batch. These guidelines are a reliable starting point; every machine and room conditions can shift optimal results.
Ideal projects and use cases: Use these sheets for large signage, wall art panels, backdrops, stage props, and retail displays. The sturdy yet lightweight 3mm thickness is great for mounting, framing, or creating clean-cut panels that carve, engrave, or etch with crisp detail. If you’re upgrading from smaller stock, the 20x30 format helps you plan bigger designs with fewer joins and faster setup.
Usage tips for best results:
- Plan for slight warping in the largest pieces; consider splitting very large designs into sub-panels if absolute flatness is critical.
- Finish with a compatible sealant or paint to enhance durability and surface resilience for high-traffic displays.
- Sand lightly after cutting to achieve a perfectly smooth edge before finishing.
Shipping and availability: This item ships to the Continental United States only (no PO boxes) via UPS Ground. It also includes free shipping to eligible addresses, making it convenient for both hobbyists and small production runs.
From the trusted Laser Wood Supplies team to your workshop, these X-Large Baltic Birch sheets are designed to deliver consistent results and reliable performance—backed by our year-plus track record of serving makers who demand quality and predictability for their laser, CNC, and crafting workflows.
Shipping Policy
Effective Date: 11/18/2025
Last Updated: 3/3/2026
1. Introduction
At Hobby Tech Supply, we aim to provide a seamless and transparent shipping experience for our customers. This Shipping Policy outlines the terms and conditions related to the delivery of products purchased from our website, hobbytechsupply.com.
2. Shipping Destinations
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Countries We Ship To:
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Future Expansion:
3. Shipping Costs
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Domestic Shipping (United States):
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Standard Shipping: FREE standard shipping for all orders over $100
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The free shipping threshold applies to the subtotal after discounts and before taxes.
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Expedited Shipping: Calculated based on item weight and priority selection.
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Flat Rate Shipping: $7.99 flat rate for orders under $100.
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Supplier-Specific Shipping Terms
Some products ship directly from our supplier or manufacturer partners and may be subject to supplier-specific shipping rates, handling fees, delivery timelines, minimum order thresholds, or freight requirements. These supplier-specific terms may differ from Hobby Tech Supply’s standard shipping policy and may override general free-shipping offers where applicable.
When a product is subject to supplier-specific shipping terms, the applicable shipping rate or threshold will be based on the supplier’s current fulfillment requirements.
Phrozen Products
Phrozen products ship directly from the supplier. Phrozen orders under $333.34 are subject to a $60 supplier-direct shipping charge. Phrozen orders of $333.34 or more may qualify for free supplier-direct shipping unless otherwise stated.
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No Hidden Fees:
4. Order Processing Time
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Processing Time:
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Order Cut-Off Time:
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Weekend and Holiday Orders:
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Note: If your order contains items from multiple vendors, they may ship separately, and each shipment will have its own tracking number.
5. Estimated Delivery Time
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Domestic Shipping:
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International Shipping:
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Note: Delivery timeframes are estimates. Actual processing and transit times vary by vendor and carrier and cannot be guaranteed. We are not responsible for supplier delays or carrier issues caused by factors outside our control, including vendor shipment issues or weather-related carrier disruptions.
6. Shipping Methods and Carriers
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Reliable Carriers:
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Shipment Tracking:
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All orders include tracking information, which will be provided via email once your order has shipped.
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Orders fulfilled by multiple vendors may arrive in separate packages. Each will include its own tracking number.
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Insurance:
7. Order Tracking
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Tracking Information:
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How to Track Your Order:
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Assistance:
8. Delivery Issues
8.1 Delayed or Lost Packages
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Delayed Delivery:
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Lost Packages:
8.2 Damaged Packages
9. Missing or Incomplete Items
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Reporting Missing Items:
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Resolution:
10. Return and Refund Policy
11. Incorrect Address
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Address Accuracy:
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Please ensure that all shipping information is correct. We are not responsible for orders shipped to incorrect addresses provided by the customer.
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Once an order is placed, if an error is identified, contact us immediately. If the item has not yet shipped, we may be able to update your address as requested.
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Returned Packages:
12. International Customs and Duties
13. Contact Information
If you have any questions or concerns regarding your shipment, please contact us:
Our customer service team is available Monday to Friday, 8 AM to 4 PM EST.
14. Changes to This Shipping Policy
We reserve the right to modify this Shipping Policy at any time. Changes and clarifications will take effect immediately upon posting on the website. We encourage you to review this policy periodically.
Thank you for shopping with Hobby Tech Supply!
We appreciate your business and are committed to providing you with exceptional service.
Legal Entity:
Ashrei Ventures LLC d/b/a Hobby Tech Supply
502 W 7th St ste 100, Erie, PA 16502
Hobby Tech Supply is a trade name (DBA) owned and operated by Ashrei Ventures LLC, a Pennsylvania limited liability company.