---
product_id: 50285184
title: "50 BROWN CORRUGATED CARDBOARD STIFFENER PADS PROTECTIVE SHEETS BOARDS - APPROX SIZE 320x320mm SQUARE - TO FIT UKPS 12\" RECORD VINYL MAILERS ENVELOPES - PACKAGING MAILING POSTAL POSTAGE PROTECTION"
brand: "ukps"
price: "228 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/50285184-50-brown-corrugated-cardboard-stiffener-pads-protective-sheets-boards-approx
store_origin: PL
region: Poland
---

# Tailored for UKPS 12" vinyl mailers Precision 320x320mm fit B-Flute 2-3mm sturdy thickness 50 BROWN CORRUGATED CARDBOARD STIFFENER PADS PROTECTIVE SHEETS BOARDS - APPROX SIZE 320x320mm SQUARE - TO FIT UKPS 12" RECORD VINYL MAILERS ENVELOPES - PACKAGING MAILING POSTAL POSTAGE PROTECTION

**Brand:** ukps
**Price:** 228 zł
**Availability:** ✅ In Stock

## Summary

> 📦 Ship Smart, Protect Better – Because Your Vinyl Deserves VIP Treatment!

## Quick Answers

- **What is this?** 50 BROWN CORRUGATED CARDBOARD STIFFENER PADS PROTECTIVE SHEETS BOARDS - APPROX SIZE 320x320mm SQUARE - TO FIT UKPS 12" RECORD VINYL MAILERS ENVELOPES - PACKAGING MAILING POSTAL POSTAGE PROTECTION by ukps
- **How much does it cost?** 228 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/50285184-50-brown-corrugated-cardboard-stiffener-pads-protective-sheets-boards-approx)

## Best For

- ukps enthusiasts

## Why This Product

- Trusted ukps brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Pack Efficiency:** 50 sheets per pack means you’re always ready to ship with confidence and save on frequent reorders.
- • **Perfect Fit for Vinyl:** Specifically engineered to snugly fit UKPS 12" record mailers, ensuring your prized vinyl stays flawless.
- • **Robust B-Flute Strength:** Crafted from durable B-Flute cardboard, these stiffeners add a solid 2-3mm protective layer against bends and impacts.
- • **Eco-Friendly Brown Kraft:** Natural brown cardboard offers a sustainable, recyclable solution that aligns with your green values.
- • **Multipurpose Packaging Power:** Not just for records—ideal for reinforcing any delicate postal or mailing items needing extra care.

## Overview

These 50 brown corrugated cardboard stiffener pads measure 320x320mm and are designed specifically to fit UKPS 12" record vinyl mailers. Made from sturdy B-Flute cardboard with 2-3mm thickness, they provide reliable protection against bending and damage during shipping. Ideal for vinyl collectors and sellers who want to ensure their records arrive in pristine condition, these eco-friendly sheets also serve versatile packaging needs.

## Description

50 BROWN CORRUGATED CARDBOARD STIFFENER PADS PROTECTIVE SHEETS BOARDS - APPROX SIZE 320x320mm SQUARE - TO FIT UKPS 12" RECORD VINYL MAILERS ENVELOPES - PACKAGING MAILING POSTAL POSTAGE PROTECTION

## Features

- PLEASE NOTE - THESE ARE MANUFACTURED TO FIT UKPS BRAND 12" RECORD MAILERS. NOT GUARANTEED TO FIT ANY OTHER BRAND OF 12" RECORD MAILERS - CHECK MEASUREMENTS.
- Quality brown corrugated cardboard stiffener pads / boards / sheets. Made from B-Flute cardboard, approx 2mm - 3mm thickness.
- To fit UKPS 12" record vinyl mailers / envelopes. Approximate size - 320mm x 320mm.
- Insert these in to the mailers with your records to add strength and protection to your package.
- Can be used for a number of other packaging packing postal postage mailing applications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | UKPS |
| Brand | UKPS |
| Product Dimensions | 32 x 32 x 0.03 cm |
| Colour | Brown |
| Closure | Self-Seal |
| Shape | Square |
| Material Type | Cardboard |
| Number of Items | 1 |
| Size | 320x320mm |
| Manufacturer Part Number | 3696614573923 |

## Images

![50 BROWN CORRUGATED CARDBOARD STIFFENER PADS PROTECTIVE SHEETS BOARDS - APPROX SIZE 320x320mm SQUARE - TO FIT UKPS 12" RECORD VINYL MAILERS ENVELOPES - PACKAGING MAILING POSTAL POSTAGE PROTECTION - Image 1](https://m.media-amazon.com/images/I/61VLhdGjDNL.jpg)

## Questions & Answers

**Q: Is the card single seats or are they envelopes**
A: They are cardboard envelopes with separate stiff boards. We used quite a lot of them and were pleased with them. The white ones were fairly soft and we basically got what we paid for, as they were cheaper in cost, so we only bought one lot of them before returning to the brown ones. We used the envelopes to send L.P.'s through the post. Pretty good buy from our point of view and we did use over 100 of them. Just be aware that you will get what you pay for regarding how much you are willing to pay. Would recommend this product. Hope this helps a little.

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**Shop now:** [https://www.desertcart.pl/products/50285184-50-brown-corrugated-cardboard-stiffener-pads-protective-sheets-boards-approx](https://www.desertcart.pl/products/50285184-50-brown-corrugated-cardboard-stiffener-pads-protective-sheets-boards-approx)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-01*