Stoneline
Subject of the Competition
The subject of the competition is the design of a palladian-type terrazzo composition.
The theme is open.
What is Palezzo?
We have named our artisanal palladian-style terrazzo creations “Palezzo.”
Inspired by the palladian flooring trend that was popular in Europe and around the world during the 1960s, we reinterpret this tradition with a contemporary approach, prioritizing the use of surplus and reclaimed stones.
We produce Palezzo either as precast slabs or through in-situ casting.
In in-situ casting, stones are arranged directly on the floor surface, over which an epoxy-based mixture is poured and then polished. This method allows the creation of seamless surfaces of up to 40 m².
If the terrazzo is used for wall cladding instead of flooring, or if in-situ casting is not feasible, the stones are arranged into a mold, filled with the mixture, and cast into slabs, which are later cut to size and installed like natural stone panels.
The maximum mold (slab) size is 120 x 240 cm.
Components of Palezzo:
- Epoxy-based matrix:
Known as the epoxy matrix, this mixture defines the background color of the Palezzo surface. The color can be selected from any standard color chart (RAL, NCS, etc.). - Aggregate:
Small stone fragments ranging in size from 0.7 mm to 12 mm.
The choice of aggregate affects the overall color perception and should be made carefully. - Stone pieces:
The core compositional elements in palladian-type terrazzo.
The stones may be cut precisely according to the design or broken by hand or with tools (e.g., hammer, guillotine) to achieve more organic forms.
Objective of the Competition
- The aim of this competition, organized by Stoneline, is to develop new compositions for our artisanal Palladian-type terrazzo collection, known as Palezzo.
- Prototypes will be produced for the works selected for the second stage.
Competition Type and Format
- This is a concept competition for students, organized by Stoneline – Palezzo.
- Participation is free of charge.
Competition Process
- We expect participants to propose a new, original composition that has not been previously realized for Palezzo.
- Since the final product will be customizable for clients such as architects or designers, participants are encouraged to imagine variations in background (epoxy matrix) color, stone types and colors, and aggregates. Each design will thus be unique.Designs selected for the second stage will undergo dry-lay prototyping in our Ayazağa showroom workshop, where designers will arrange their stone compositions into molds themselves.
Expectations for Stage 1:
- Design a 50×50 cm palezzo composition. (An A1-sized poster presentation is required; it may be hand-drawn, collage or digitally printed.)
- The selection of stones (stone type and/or colour-size-shape) must be specified in the 1:1 scale drawing to be made on the poster, and the composition must be coloured to match reality.
- The epoxy base colour must be selected. The RAL or NCS code must be specified.
- ggregate selection is optional at this stage and can be left for Stage 2.
Workshop Activities in Stage 2:
- Arranging pre-cut or workshop-broken stones into molds (dry-lay process).
- Fixing stones in the mold to prevent shifting during casting.
- Selecting aggregates (optional; initial selections can be revised).
- Determining aggregate ratios to finalize the preparation for casting.
Materials to be Used:
- Stone Selection: Participants must select stones from the following list (one or multiple):
- Marmara (gray)
- Dolomite (white)
- Uşak green
- Yellow travertine
- Beige travertine
- Pink travertine
- Greige
- Salvadori
- Lilac
(Visual references for these stones can be accessed via the competition resource links below.)
Stone sizes may range from 2-20 cm.
If broken stones are used in the design, they will be broken during the workshop, so there may be slight differences from the original design. The main concept must be maintained.
- Epoxy Matrix Mixture: The epoxy matrix color chosen by the participant will be prepared in advance (must be selected from the RAL or NCS chart).
- Aggregate (small stone pieces) Options:
- White: 1-6 mm (1 mm, 1-3 mm, or 3-6 mm)
- Red: 1-6 mm (1 mm, 1-3 mm, or 3-6 mm)
- Black: 1-4 mm (1 mm or 2-4 mm)
- Yellow onyx: 1-6 mm (1 mm, 1-3 mm, or 3-6 mm)
- Green: 1-6 mm (1 mm, 1-3 mm, or 3-6 mm)
If you have any questions, please send them to palezzo@stoneline.com.tr.
We wish you success, we look forward to your valuable work.
We share the designs made by the Palezzo team for your information, you can access them from the link below.
https://drive.google.com/drive/folders/1uyFGwDDml6tcEcDflxmkKAXvNa_jyesO?usp=drive_link
Participation Requirements
Important Note:
- Entries submitted during the first announcement period of the competition (originally announced on March 29, 2025) will remain valid after postponement.
- Participants who were students at that time but have since graduated will still be eligible for evaluation.
- The competition is open to undergraduate and graduate students enrolled in Fine Arts, Interior Architecture, or Architecture departments at universities affiliated with the Council of Higher Education in Turkey or KKTC.
- Individual participation is required (no group entries).
- Participants must be under 25 years old and provide an official student certificate for the 2025–2026 academic year.
- Jury members, advisors, alternates, rapporteurs, and direct relatives of organizers cannot participate.
- Each participant may submit only one (1) composition.
- All submissions must be delivered within the deadlines and under the specified conditions.
- Entries must be original and previously unpublished/unrealized. If plagiarism or prior production is detected and confirmed by a qualified jury majority, the design will be disqualified, and any awarded prize must be returned.
- Any identifying marks (name, initials, etc.) on the presentation board will result in disqualification.
Submission Format:
- The composition must be presented on one (1) A1 (84 x 59.4 cm) vertically oriented board.
- Explanations and notes must appear on the same board.
- A five-digit code must be written in the upper right corner.
- The composition must be drawn at 1:1 scale within a 50×50 cm layout.
Submission Requirements:
- Sealed identity envelope (labeled only with the code)
- One (1) A1 poster (print, collage, or hand-drawing)
- USB drive containing digital copies of the presentation board and registration forms
Rules:
- Participants grant Stoneline the usage rights for their submitted compositions.
- Participants may not contact jury members or rapporteurs during the competition.
All inquiries must be sent via email to palezzo@stoneline.com.tr with the subject line “Palezzo Design Competition” within the designated Q&A period. - By submitting an entry, participants agree to the terms of the specification, including data sharing and contact communication.
- Entries that violate any rule, reveal participant identity, are incomplete, or submitted after the deadline will be excluded by jury decision.
Competition Timeline:
- Announcement: 05.11.2025
- Final date for questions: 05.12.2025
- Answers to questions published: 12.12.2025
- Submission deadline: 20.02.2026
- Stage 1 jury evaluation: 23.02.2026
- Announcement of results & Stage 2 invitation: 24.02.2026
- Workshop: 28.02.2026
- Stage 2 jury evaluation:
- Final results announcement: 06.03.2026
- Exhibition & Award Ceremony: 06.03.2026
Announcement of the competition, questions and results
All information and announcements about the competition are published on the Stoneline and Palezzo website.
Contact details of the competition and place of submission
Stoneline Building Products Inc.
Mimar Sinan Mah. Sarı Lale Sok. No:4/A 34075 Ayazaga-Eyüpsultan-Istanbul
Delivery information
A copy of the receipt (showing the date and time of shipment) of the projects sent by cargo must be sent to the e-mail address of the rapporteurship until 17:00 on Monday, 2 June 2025, which is specified as the ‘Deadline for submission of projects’ in the competition calendar.
Delivery address by hand or by courier:
Stoneline Building Products Inc.
Mimar Sinan Mah. Sarı Lale Sok. No:4/A 34075 Ayazağa-Eyüpsultan-Istanbul
Company Secretary
Feride Hanım
+90 541 799 98 27
Selection committee members
Consultant jury members
Arzu Bayrak
Mehmet Bayrak
Levent Özen
Özlem Karma
Principal jury members
Arif Özden
Eren Bayrak
Gül Ökten
Kerem Erginoğlu
Mustafa Toner
Nuray Uygur
Şebnem Buhara
Yeşim Bakırküre
Substitute jury members
Ceren Erman
Hasan Arslan
Awards:
Stage 1:
- 7–10 designs will be selected.
- Each selected participant will receive 8,000 TL.
Stage 2:
- 1st Prize: 55,000 TL
- 2nd Prize: 33,000 TL
- 3rd Prize: 22,000 TL
Accommodation and transportation expenses for the second-stage workshop in Istanbul will be covered by the organizer.
Resources to be used for the competition:
